A small mass mhangs from a thin string and can swing like a pendulum. You attach it above the window of your car as shown. What angle does the string make (a) when the car accelerates at a constant a = 1.20 m/s², and (b) when the car moves at constant velocity, v = 90 km/h? HOMEWORK!

A small mass mhangs from a thin string and can swing like a pendulum. You attach it above the window of your car as shown. What angle does the string make (a) when the car accelerates at a constant a = 1.20 m/s², and (b) when the car moves at constant velocity, v = 90 km/h? HOMEWORK!

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter6: Motion In Two Dimensions

Section6.3: Relative Velocity

Problem 27PP

See similar textbooks

Related questions

Q: Problem Eight. A solid sphere has a mass density given by p=por/R. The total mass is M = 2.0 kg and…

Q: 1) An electron is moving in a region where there is an electric field and a magnetic field. The…

Q: The masses and coordinates of four particles are as follows: 40 g, x = 3.0 cm, y 3.0 cm, y = 1.0 cm;…

Q: A 14.0 m uniform ladder weighing 490 N rests against a frictionless wall. The ladder makes a…

Q: Supposed your physics instructor wears a pair of glasses with diverging lenses with focal length -60…

Q: What is milky way ?

A: The Milky Way is a barred spiral galaxy, a vast and intricate cosmic structure that contains our…

Q: 1)A Si crystal in the form of a cube of side 1.0 nm is at equilibrium at 300 K.The edge of the…

A: The objective of the question is to find the energy of a conduction electron in the ground state and…

Q: Jane is traveling west at a speed of 25 m/s. A train is traveling directly towards her with a speed…

Q: An electron moves at 2.60 ××1066 m/sm/s through a region in which there is a magnetic field of…

Q: A loop of wire sits in a uniform magnetic field, everywhere pointing toward you. Due to a changing…

A: Magnetic field, B = 0.610 TVoltage, E = 0.123 V Time, t = 1.19 sInitial area, a = 0.600 m^2Final…

Q: Given that 1² ex dx = · [²³³ ex dx = e³ - e, use this result to evaluate 3ex +4 dx

Q: 3. Calculate the magnitude and direction of the force felt on the wire below. Assume the mag- netic…

Q: The distance between two charges, -2nC and +1nC, is 5cm. Draw electric field lines that describe the…

A: Electric field lines always point away from a positive charge and towards a negative one. In fact,…

Q: 1. What coefficient of friction do cars need on a flat curve? (a) Calculate the centripetal force…

Q: For the wire arrangement in the figure, a = 16.9 cm and b = 24.7 cm. The current in the long…

Q: According to the NASA Science Solar System Exploration web site, "Mars' moons are among the smallest…

A: Time period (T)= Time taken for 1 rotationFrequency (f) = no of rotation in 1sec = (1/time period) =…

Q: The figure below shows two very long straight wires (in cross section) that each carry a current of…

Q: A coffee-maker contains a heating element that has a resistance of 14 Q. This heating element is…

Q: A laser emits a beam of monochromatic light with frequency 4.07 x 10^14 Hz. What color is the laser…

A: Speed of light in vacuum is ------------------(1)f= frequency of light = 4.07×1014 Hz.c= speed of…

Q: “A refrigerator takes in 20 J of work and exhausts 50 J of heat. What is the refrigerator’s…

A: The objective of this question is to calculate the coefficient of performance of a refrigerator,…

Q: 1. Calculate the angle a person needs to lean from the vertical wher 1. walking a 17 m (radius)…

A: radius of track, R=14mSpeed of man,

Q: This time the magnetic field maintains a constant value of 0.960 T, and we achieve an induced…

A: The magnetic field is B = 0.960 T The voltage is Vd = 0.187 V The time after which voltage is…

Q: A light ray falls on the left face of a prism (see below) at the angle of incidence 0 for which the…

Q: A man moves a 170 kg piano with constant speed up a ramp inclined 15.0º above the horizontal.…

Q: on Form | AP. A mechanical actuator, shown below, shakes the end of a string at 10 Hz. This creates…

A: The wavelength of a wave on a string is given by the equation:where: is the wavelength, is the wave…

Q: A loop has 75 turns with an area A=45 cm2 is situated in a uniform magnetic field B=3.45 T. What is…

A: Turn of the loop is N =75area of the loop A = 45 cm2 = 0.0045 m2value of the initial magnetic field…

Q: . What coefficient of friction do cars need on a flat curve? (a) Calculate the centripetal force…

A: Mass of vehicle is Radius is Speed of vehicle is Note:Find:The centripetal force.

Q: A) In what part of the EM spectrum would a photon of energy 4.9 ✕ 10−17 J be found? microwave…

A: The objective of the question is to find out the part of the electromagnetic (EM) spectrum where a…

Q: The resistance of a bagel toaster is 14 22. To prepare a bagel, the toaster is operated for one…

Q: Three blocks A, B and C are connected by two ropes with weigh 25 N each and the coefficient of…

Q: Of the four processes indicated below, indicate which are radiative processes: A) absorption,…

Q: 1- Explain the difference between Fresnel and Franhofer diffraction.

A: The difference between Fresnel and Fraunhofer diffraction is to be explained.

Q: An object 1.70 cm high is held 3.00 cm from a person's cornea, and its reflected image is measured…

Q: The heating element in an iron has a resistance 360. The iron is plugged into a 120-V outlet. What…

Q: A 45 g bug is hovering in the air. A gust of wind exerts a force F = (4.02 - 6.03) × 10-² N on the…

A: The work done by a force is calculated using the formula: W= where:Work is measured in joules…

Q: 1. Two stars located close together are photographed through a telescope. The black and white film…

Q: 4.5 kg of aluminum at 190 C is added to 3.5 kg of water at 20 C. What is the resulting equilibrium…

A: Mass of aluminum mal = 4.5 KgThe initial temperature of aluminum Tal = 190Mass of water m = 3.5KgThe…

Q: During a 4.75 s interval, a particle's coordinates change from x = 11.0 m, y = 5.25 m to x = 30.3 m,…

Q: Two charged particles are a distance of 1.62 m from each other. One of the particles has a charge of…

A: The electric force between two charges q1 and q2 seperated by distance r is F = Where, = 9×109…

Q: example Homeware MB MA 7777777 30 MA = 30 kg MB = 10kg VALO V₁=0 Determine the acceleration of…

A: FBD of the block and the wedge.

Q: F 2. What can you say on the two forces acting on an object that is initially at rest for it to…

Q: In an interference experiment, red light with a wavelength of 6.0 x 10 –7 m passes through a double…

A: Given Data:Wavelength Distance of screen Distance between screens Wavelength of blue color To…

Q: A projectile of mass m moves to the right with a speed vi (see figure below). The projectile strikes…

A: Given:mass of projectile mvelocity of projectile viMass of rod =M , length = dmoment of inertia of…

Q: A light ray strikes a 10-cm-thick glass pane, making a 30° angle to the perpendicular to the glass…

Q: 0.52 mol of argon gas is admitted to an evacuated 3.00 liter (3.00 × 10-3 m3) container at 20.0°C.…

Q: A rock is thrown directly up an with an initial velocity of v=41 m/s at instant A as shown in the…

A: Given Data:The initial velocity of the rock at instant A is The time taken by the rock to move from…

Q: (a) How many minutes does it take a photon to travel from the Sun to the Earth? 8.33 It can be…

A: (c)Given Data:The energy of the photon is The energy of the photon is written as,Where, is the…

Q: A man standing 1.58 m in front of a shaving mirror produces an inverted image 19.6 cm in front of…

Q: 4. Block A and spool B weigh 8 and 6 lb, respectively. The spool has a string wrapped around it to…

A: Free body diagram :Given,Weight of the Block A is Weight of the spool B is The coefficient of static…

Q: A stone is dropped into a well. The sound of the splash is heard 5.00 s later. What is the depth of…

A: Speed of sound wave is The sound of splash is heard after Find:The depth of wall.

Concept explainers

Angular speed, acceleration and displacement

Angular acceleration is defined as the rate of change in angular velocity with respect to time. It has both magnitude and direction. So, it is a vector quantity.

Angular Position

Before diving into angular position, one should understand the basics of position and its importance along with usage in day-to-day life. When one talks of position, it’s always relative with respect to some other object. For example, position of earth with respect to sun, position of school with respect to house, etc. Angular position is the rotational analogue of linear position.

Question

How can we tackle questions like these? I'm having trouble figuring it oit

ample 4.7
42
mg
A small mass / hangs from a thin string and can swing like a pendulum.
You attach it above the window of your car as shown. What angle does
the string make (a) when the car accelerates at a constant a = 1.20 m/s²,
and (b) when the car moves at constant velocity, v = 90 km/h?
HOMEWORK!

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1: Introduction and FBD:

VIEW

Step 2: Calculating angle:

VIEW

Solution

VIEW

Step by step

Solved in 3 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Angular speed, acceleration and displacement

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.

Similar questions

A 55 kg astronaut who weighs 200 N on a distant planet is pondering whether she can leap over a 3.5-m-wide chasm without falling in. If she leaps at a 15^∘ angle, what initial speed does she need to clear the chasm?
The heaviest watermelon weighed in at 159 kg (350.5 lbs.) and was grown by Chris Kent (USA) of Sevierville, Tennessee. Chris releases the watermelon from rest from the top of a 150.0m tall building by a small crane. We neglect air resistance. If needed, use 9.80 m/s2 for the magnitude of g. What is the time it takes to hit the ground after being released and what will be the final impact velocity when it hits the ground? Report answers to 3 sig figs.
A student wants to angle a ramp such that if she releases a 2.8kg cart at the top of a ramp, the cart will travel 210cm and hit the end of the ramp in 1.6s. Neglect backwards friction and drag. What does the magnitude of the net force on the cart need to be? What does the magnitude of the cart's acceleration need to be? At what incline angle (0) does the ramp need to be slanted? m/s2 What will be the maximum speed of the cart? m/s cannot be detem check answers
In this example we will add friction to an inclined ramp. Of course, friction does work and we will need to determine its contribution to WotherWother. A crate full of machine parts sits on the floor; the total mass is 8.0 kg. The crate must be raised to the floor of a truck by sliding it up a ramp 2.5 m long, inclined at 30∘. The shop foreman, giving no thought to the force of friction, calculates that he can get the crate up the ramp by giving it an initial speed of 5.0 m/S at the bottom and letting it go. Unfortunately, friction is not negligible; the crate slides 1.6 mm up the ramp, stops, and slides back down. (Figure 1) shows the situation. (a) Assuming that the friction force acting on the crate is constant, find its magnitude. (b) How fast is the crate moving when it reaches the bottom of the ramp? PART B Suppose the foreman had released the box from rest at a height of 0.25 m above the ground. What would the crate's speed be when it reaches the bottom of the ramp?
An adventurous archeologist (m = 85.0 kg) tries to cross ariver by swinging from a vine. The vine is 10.0 m long, and hisspeed at the bottom of the swing is 8.00 m/s. The archeologistdoesn’t know that the vine has a breaking strength of 1 000 N.Does he make it across the river without falling in?
A box with mass m sits at the bottom of a long ramp thatis sloped upward at an angle a above the horizontal. You give the boxa quick shove, and after it leaves your hands it is moving up the rampwith an initial speed v0. The box travels a distance d up the ramp andthen slides back down. When it returns to its starting point, the speedof the box is half the speed it started with; it has speed v0 /2. What isthe coefficient of kinetic friction between the box and the ramp? (Youranswer should depend on only a.)
The rotation of the earth causes a centrifugal effect on a mass near the surface of the earth. This slightly changes the effective acceleration due to gravity. We can call the old acceleration due to gravity go and the effective acceleration geff. a. Show that the angle between go and geff can be expressed as /55'R sin(e) cos(0)) = tan Go - Ns/s, R sin²(0) where 0 is the angle between the angular velocity of earth and the position of the mass near the surface of the earth. b. How small that o if 0 is 45° and R is the radius of the earth. m Tm/S
A cart with mass 15.7 kg is intitally at rest. You get it moving by pushing on the cart at an angle of 0 = 37° as shown above. The magnitude of your force as a function of time is given by: Fyc(t) = Foe-bt, where b = 0.55 s-1 and Fo = 138.1 N. You can assume that the wheels roll perfectly on the ground. What is the speed of the cart when t = 3.3 s? Don't Know Where to Start? ... A Hint About N2L A Hint About the Proces ...... ........................ Vf = 10.25m/s
A small object of mass 2 kg is suspended from a string of length 2 m as shown in the figure. The object revolves with constant speed v in a honizontal circle. If 0=15°, the velocity of the object (in m/s) equals: Select one: a. 1.17 b. 0.83 c. 1.166 d. 2.03
A piano has been pushed to the top of the ramp at the back of a moving van. The workers think it is safe, but as they walk away, it begins to roll down the ramp. Neglect the friction between the piano and the ramp. If the back of the truck is 1.5 mm above the ground and the ramp is inclined at 26 ∘∘ , how much time do the workers have to get to the piano before it reaches the bottom of the ramp?
A jet dives vertically at a speed v = 174 m/s, before pulling out of the dive along a circular arc. The pilot can survive an acceleration of a = 8.6 g. His mass is m = 91 kg. What is the minimum radius of the circular arc, in meters, that the pilot can make without injury? (Watch you sigfigs) I understand how to calculate this answer, but I need help determining the correct number of sig figs for the answer.
A 300 kg elevator on planet Zico (g313 m/s/s) is at rest on the TOP floor whilst being suspended by a thick steel rope with tension, T. The elevator now accelerates downwards at 5 m/s/s. During this downward acceleration, the rope tension, T, in the steel rope will be ? Explain your answer in RATIONALE section! O A. 2000N whilst it were stationary and now 1200 N whilst accelerating downwards. B. remains the same throughout movement. OC. 3900N whilst it were stationary and now 1500 N whilst accelerating downwards. D. 3900 N whilst it were stationary and now 2400 N whilst accelerating downwards.