Impulse Investigation part 2

Q3/ The figure below shows the position of two balls separating in opposite directions after a perfectly elastic collision. Assume the balls have different magnitudes on their velocities and masses before collision. Momentum after collision a. Indicate the direction of the momentum of each ball after collision b. Were the two balls both moving or can one be initially at rest before collision? To answer this, choose sample initial velocities representing both cases C. Solve each situation using the formulas for elastic collision d. Analyze your answer in (b) by comparing your results in (c)

Equation Jeopardy 1 The equations below describe one or more physical processes. Solve the equations for the unknowns and write a problem state- ment for which the equations are a satisfactory solution. * -(0.001 kg) (9.8 N/kg) + T sin 88° = 0 (−5.0 × 10-³ C)Ex + T cos 88° = 0

Hello can you help me solve this problem with complete solution and illustration? *A 40kg boy is sliding on a horizontal and frictionless surface with an initial momentum of 90J due east. When t=0, a force, a function of time, F=8.20t is applied to the boy due west. a) at what value of t will result in the momentum of the boy 60J due west? b) what is the acceleration of the boy at the time computed in letter a?

University Physics 1 - Conservation of Momentum I need help with this problem and an explanation of the solutions described below:   Pick one of the collisions (identify which one it is) from the air track collision experiment. Collision 2 ( described in the image below)  and calculate the mechanical energy both before and after the collision. Was energy lost or gained? If it was lost, where did it go? If it was gained, where did it come from?

review Engineering Dynamics Part B What is the normal reaction on the car when the it is at B? Express your answer to three significant figures and include the appropriate units.       NB =   Part C What is the normal reaction on the car when the it is at C C? Express your answer to three significant figures and include the appropriate units.       NC =

Nate the Skate was an avid physics student whose main non-physics interest in life was high-speed skateboarding. In particular, Nate would often don a protective suit of Bounce-Tex, which he invented, and after working up a high speed on his skateboard, would collide with some object. In this way, he got a gut feel for the physical properties of collisions and succeeded in combining his two passions.* On one occasion, the Skate, with a mass of 115 kg, including his armor, hurled himself against a 891 kg stationary statue of Isaac Newton in a perfectly elastic linear collision. As a result, Isaac started moving at 1.45 m/s and Nate bounced backward. What were Nate's speeds immediately before and after the collision? (Enter positive numbers). Ignore friction with the ground. speed before: m/s speed after: m/s *By the way, this brief bio of Nate the Skate is written in the past tense, because not long ago he forgot to put on his Bounce-Tex before colliding with the Washington Monument in…

Nate the Skate was an avid physics student whose main non-physics interest in life was high-speed skateboarding. In particular, Nate would often don a protective suit of Bounce-Tex, which he invented, and after working up a high speed on his skateboard, would collide with some object. In this way, he got a gut feel for the physical properties of collisions and succeeded in combining his two passions.* On one occasion, the Skate, with a mass of 119 kg, including his armor, hurled himself against a 887 kg stationary statue of Isaac Newton in a perfectly elastic linear collision. As a result, Isaac started moving at 1.63 m/s and Nate bounced backward. What were Nate's speeds immediately before and after the collision? (Enter positive numbers). Ignore friction with the ground. speed before: m/s speed after: m/s *By the way, this brief bio of Nate the Skate is written in the past tense, because not long ago he forgot to put on his Bounce- Tex before colliding with the Washington Monument in…

Nate the Skate was an avid physics student whose main non‑physics interest in life was high‑speed skateboarding. In particular, Nate would often don a protective suit of Bounce-Tex, which he invented, and after working up a high speed on his skateboard, would collide with some object. In this way, he got a gut feel for the physical properties of collisions and succeeded in combining his two passions.* On one occasion, the Skate, with a mass of 121 kg, including his armor, hurled himself against a 841 kg stationary statue of Isaac Newton in a perfectly elastic linear collision. As a result, Isaac started moving at 1.09 m/s and Nate bounced backward. What were Nate's speeds immediately before and after the collision? (Enter positive numbers). Ignore friction with the ground.

Nate the Skate was an avid physics student whose main non‑physics interest in life was high‑speed skateboarding. In particular, Nate would often don a protective suit of Bounce-Tex, which he invented, and after working up a high speed on his skateboard, would collide with some object. In this way, he got a gut feel for the physical properties of collisions and succeeded in combining his two passions.* On one occasion, the Skate, with a mass of 121 kg, including his armor, hurled himself against a 827 kg stationary statue of Isaac Newton in a perfectly elastic linear collision. As a result, Isaac started moving at 1.93 m/s and Nate bounced backward. What were Nate's speeds immediately before and after the collision? (Enter positive numbers). Ignore friction with the ground. speed before: ? m/s speed after: ? m/s

B. Ball Game (Practice Activity – answer key below) 1. A neophyte player catches a 125 g ball moving at 25.0 m/s in 0.02 s. A professional player catches the same ball in 1.0 s by slightly retracting his hand during the catch. Find the forces exerted by the ball on the hands of the two players. 2. Two balls A and B are approaching each other with velocities 4.5 m/s, right and 7.2 m/s, left, respectively. The mass of ball A is 3.2 kg, while that of ball B is 5.6 kg. Find the velocity of the two bodies after impact, assuming that the collision is perfectly inelastic.

MULTIPLE CHOICE Question 3 Esmerelda constructed a vacuum chamber that contained no air. She dropped a 7 kg bowling ball and a ! kg pillow at the same time from the same height within the chamber. 1 Which statement best describes the behavior of the objects in the chamber? The bowling ball reached the ground before the pillow. The pillow reached the ground before the bowling ball. Both objects reached the ground at the same time. The bowling ball fell to the ground while the pillow floated.

SC 24: Module 4 Assignment Booklet 48 For questions 17 to 21, read each question carefully. Decide which of the choices BEST answers the question. Place your answer in the blank space given. 17. Two vehicles with the same mass and travelling the same speed in opposite directions hit head on. What is the total momentum immediately after the collision? A. zero B. double that of each car C. one half that of each car D. four tirnes that of each car Use the following diagram to answer questions 18 and 19. Car B Car A nt Bookl ence 24

Driving home from school one day, you spot a ball rolling out into the street (see the figure (Figure 1)). You brake for 1.20 s, slowing your 950-kg car from 16.0 m/s to 9.50 m/s.   Part A: What was the magnitude of the average force exerted on your car during braking?  in Netwons

Free Particle Model Horse and Cart Problem A horse is pulling on a cart, accelerating the cart forward. The cart and rider have a combined mass of 150 kg. The horse has a mass of 440 kg. The horse pulls on the cart with 75 newtons of force. . What is a possible numerical value for the forward force on the horse? Explain why.

ACTIVITY 2 POSSIBLE AND IMPOSSIBLE COLLISIONS The table below shows the motion of two objects before collision and the 4 diagrams that represent the motion of the two objects after collision. Compute for their KE before and after collision to identify whether the collision is POSSIBLE OR NOT POSSIBLE. Support your answers with a mathematical solution. Before Collision After Collision Possible or Impossible Collision 1 m's 5 mis 8kg 4kg KE fter 9 mis 4kg 6 mis KEher= Skg 8 mis 5 m/s Skg KEbefore = 3 mis 9 m's Skg 4kg KEafter Class comm I mis Bkg 4kg a class comn KEner

02 Point material of mass 1 Kgr moves along the x-axis under the influence force F, which opposes the motion and is proportional to its square of speed with proportionality constant B=2. There is no gravity. A) Find the velocity and position of the material point for t > 0, if for t = 0 u = 2 m/s and x=0. B) Investigate your results: 1) if they satisfy the initial conditions, 2) if they have the right dimensions and 3) if in the limit t →∞ they logically give and expected results.

a) What type of collision is this? How do you know? b) What is the speed of the two intertwined bikes after the collision? c) In what direction are they moving after the collision?

Two frictionless carts collide with each other on a level surface. Cart A has a mass that is several times smaller than the mass of Cart B. Read the following statements about the time during the collision of the carts and select ALL answers that apply. A. Cart A has a larger magnitude acceleration than Cart B during the collision B. Cart A exerts the same amount of force on Cart B that Cart B exerts on Cart A C. Cart A exerts more force on Cart B than Cart B exerts on Cart A D. Cart A has a smaller magnitude acceleration than Cart B during the collision E. Cart A has the same magnitude acceleration as Cart B during the collision

A large man and a small boy stand facing each other on frictionless ice. They put their hands together and push against each other so that they move apart. Who moves away with the higher speed? a) The small boy b) The large man c) Both move with equal speeds. d) Not enough information

**coffee filter has mass 0.01908 kg  total stack mass m = 12 × 0.01908 = 0.22896 kg AveVelInitial = y3 − y1/t3-t1 = 1.10446 m/s t = 0 at the second observation of our collected data  distance fallen here is 0 m  initial velocity of 1.10446 m/s.** a) With these assumptions, construct a Free Body Diagram (FBD) and indicate all the forces acting on the mass of the stacked coffee filters. b) Using Newton’ s Second Law of Motion which says that the change in momentum is equal to the sum of all the external forces acting on the mass of the stacked coffee filters, construct amathematical model for determining the velocity, v(t) = y'(t), of this object. Here y(t) is thedistance the coffee filters have fallen from rest in meters at time t in seconds

Free Particle Model Horse and Cart Problem A horse is pulling on a cart, accelerating the cart forward. The cart and rider have a combined mass of 150 kg. The horse has a mass of 440 kg. The horse pulls on the cart with 75 newtons of force. .What is a possible numerical value for how hard the cart pulls back on the horse? Explain why.

A. Perfectly inelastic collisions Figure 1 shows the schematic of the set up for this part of experiment. Before the collision, cart 2 should be at rest. motion detector added mass cart 1 velcro track cart 2 mass of cart 1: 1009.6 g g mass of cart 2: 510 measured velocity of cart 1 before collision: 0.642 m/s measured velocity of the carts after the collision: 0.379 m/s expected velocity of the carts after the collision, based on conservation of momentum: (show calculation here) percent difference between measured and expected final velocities: measured total kinetic energy before the collision: measured total kinetic energy after the collision: 0.4265 11.14/0 m see

Block X Block Y 10. Vx M Figure 1. Before the collision Block X Block Y VXY. M Figure 2. After the collision Block X slides along a horizontal surface with a speed Vx toward block Y that is initially at rest, as shown in Figure 1. After block X collides with block Y, the two blocks remain stuck together and travel at a velocity of VXY, as shown in Figure 2. Frictional forces are considered to be negligible. Which of the following claims is correct regarding the momentum of the system containing only block X and the system that contains block X and block Y? A The system containing block X is an open system, and the system of both blocks is an open system. The system containing block X is an open system, and the system of both blocks is a closed system. The system containing block X is a closed system, and the system of both blocks is an open system. D The system containing block X is a closed system, and the system of both blocks is a closed system.

QUESTION 3 The football team is running drills at practice. The first drill has Player A run toward Player B and bounce off of them (assume no additional force is applied other than the collision). Based on the diagram below, what direction and velocity is Player B moving after the collision. v=8m/s before B v=6.8 m/s after A

From YOUR personal experiences, draw a picture where the net force = 0 on a moving object. Each picture must include 1. Arrows and labels for the vector forces that cancel. 2. A short (one or two sentence) description of the motion that describes What the object was doing. The evidence indicating that the object’s momentum is conserved. Cite evidence of both constant speed and constant direction.

* A Rocket in Deep Space A rocket is fired in deep space, where gravity is negligible. In the first second it ejects 160 of its mass as exhaust gas and has an acceleration of 14.5 m/s Part A What is the speed veas of the exhaust gas relative to the rocket? Express your answer numerically in kilometers per second. > View Available Hint(s) ΑΣΦ Vgas = 2320 km/s Submit Previous Answers X Incorrect; Try Again; 4 attempts remaining Provide Feedback MacBook Air 80 88 F4 esc DII DD F1 F2 F3 F5 F6 F7 FB F9 @ %23 2$ & 2 4 7 8. Q W E T Y A S F K

My question is 5. Explain whether or not your results verify that g is independent of the mass of the object.       6. Explain whether or not your results verify that g = 9.8 m/s2.