sics 101SICS0780938042Aljall saalR1) An object has a position given by r = [2+3t)i+ [3- 2t21j. What is thepeed of the object at time t = 1s ?A) 4 m/sB) 10 m/sC) 5 m/sD) 8 m/sR2) A projectile is fired from ground with an initial velocity v = 30i +Oj m/s and returns to the ground. Find the horizontal range of therojectile.A) 60 mB) 30 mC) 120 mD) 40 m23) At t = 0, a particle leaves the origin with a velocity of 10 m/s in theositive y direction and moves in the xy plane with a constant accelerationf (2i - 4j) m/s2. At the instant the x coordinate of the particle is 25 m,Vhat is the speed of the particle ?C) 10 m/sD) 16 m/s) 14 m/sB) 12 m/s24) A boy on the edge of a building 20m high throws a stone horizontallyrith a speed of 25m/s. At what horizontal distance from the building ittrikes the ground ?C) 60 mD) 50 m-) 25 mB) 35 m5) A car moves with constant speed around the circle as shown. When itat point A its coordinates are x = 0, y = 3m and its velocity is (6m/s)i./hen it is at point B its acceleration.O 12 m/s2 iB) -12 m/s? j12 m/s? jD) -12 m/s? iFareebyPage

Given: The position equation of the particle is r=2+3ti^+3-2t2j^. Introduction: The rate of change…

Answered: 0780938042 Aall dal 1) An object has a…

0780938042 Aall dal 1) An object has a position given by r [2+30]1+ [3-2t1. What is the seed of the object at time t = 1s ? 04 m/s B) 10 m/s C) 5 m/s D) 8 m/s 2) A projectile is fir

Physics for Scientists and Engineers

10th Edition

ISBN:9781337553278

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter3: Vectors

Section: Chapter Questions

Problem 46CP: A pirate has buried his treasure on an island with five trees located at the points (30.0 m, 20.0...

See similar textbooks

Similar questions

A landscape architect is planning an artificial waterfall in a city park. Water flowing at 1.70 m/s will leave the end of a horizontal channel at the top of a vertical wall h = 2.35 m high, and from there it will fall into a pool (Fig. P3.42). (a) Will the space behind the waterfall be wide enough for a pedestrian walkway? (b) To sell her plan to the city council, the architect wants to build a model to standard scale, which is one-twelfth actual size. How fast should the water flow in the channel in the model? Figure P3.42
A pirate has buried his treasure on an island with five trees located at the points (30.0 m, 20.0 m), (60.0 m, 80.0 m). (10.0 m, 10.0 m), (40.0 m, 30.0 m), and (70.0 m, 60.0 m), all measured relative to some origin, as shown in Figure P3.46. His ships log instructs you to start at tree A and move toward tree B, but to cover only one-half the distance between A and B. Then move toward tree C, covering one-third the distance between your current location and C. Next move toward tree D, covering one-fourth the distance between where you are and D. Finally move toward tree E, covering one-fifth the distance between you and E, stop, and dig. (a) Assume you have correctly determined the order in which the pirate labeled the trees as A, B, C, D, and E as shown in the figure. What are the coordinates of the point where his treasure is buried? (b) What If? What if you do not really know the way the pirate labeled the trees? What would happen to the answer if you rearranged the order of the trees, for instance, to B (30 m, 20 m), A (60 m, 80 m), E (10 m, 10 m), C (40 m, 30 m), and D (70 m, 60 m)? State reasoning to show that the answer does not depend on the order in which the trees are labeled. Figure P3.46
Problem 8. A fast duck is flying 20i + 40j Įmi/h at the same altitude as a slow airplane flying with a velocity of ( -80i + 40j mi/h. How fast and in what direction is the duck moving relative to the airplane? a) 100 mi/h, along +î b) 100 mi/h, along -î c) 150 mi/h, along +j d) 150 mi/h, along -ĵ e) 200 mi/h, along +î
7) A particle’s position along the x-axis is described by x(t) = A t + B t², where t is in seconds, x is in meters, and the constants A and B are given below. Randomized Variables A = -4.8 m/s B = 7.9 m/s2 a) What is the velocity, in meters per second, of the particle at the time t1 =3.0s? b) What is the velocity, in meters per second, of the particle when it is at the origin (x = 0) at time t0 > 0?
b. Prove that, the range, R the time of flight, T and the Maximum height, H by a projectile are respectively given by; vỷ sin² e R = (5/g) sin20 , T = (2v,sin®), and H = 2g
Susan lives 1.85 km [E] from the school and her good friend, Mary, lives 1.14 km [W] from the school If it took Susan 35 minutes and 20 seconds to travel from her house to Mary's house, what would be Susan's average velocity, in m/s? 1.4 m/s [E] 1.41 x 103 m/s [W] 1.4 m/s [W] 0.335 m/s [E]
7. An object's velocity is v = t* – 3t? where t 2 0. a) At what time/times is the object at rest? b) In what time range is the object moving to the left? In what time range is the object moving to the right?
A passenger in a train moving at 30 m/s passes a personstanding on a station platform at t=t'=0. Twenty secondsafter the train passes, the person on the platform determines thata bird flying along the tracks in the same direction as the trainis 800m away. Five seconds later, the bird is 850maway. Assume a constant velocity for all involved. a) Draw a coordinate system indicating the motion of bird andtrain in the grame of the observer on the platform b) What are the coordinates of the bird as determined by thepassenger? c) Find the velocity of the bird as determined by the observeron the platform and the train passenger. Thanks! Will rate highest
A passenger in a train moving at 30 m/s passes a personstanding on a station platform at t=t'=0. Twenty secondsafter the train passes, the person on the platform determines thata bird flying along the tracks in the same direction as the trainis 800m away. Five seconds later, the bird is 850maway. Assume a constant velocity for all involved. a) Draw a coordinate system indicating the motion of bird andtrain in the grame of the observer on the platform b) What are the coordinates of the bird as determined by thepassenger? c) Find the velocity of the bird as determined by the observeron the platform and the train passenger.
Q)2 The particle travels from A to B with a velocity at point A of 60 m/s, shown in figure below. Also, between points A and B the acceleration is a=g=-10 m/s^2 ? (use sin20= 0.342 & -: cos20=0.94) Find نقطة واحدة A)) The distance ween A * ? and B a=g=-10 m's 60 m/s B 20 'AB = 5 s 30.0 m O 282 m 300 m 56.4 m 28.2 m
1. The diagram below gives the velocity-time graph for a particle travelling along the х-ахis. 60 V(m/s) 40 20 10 20 30 40 50 t (s) Calculate: (i ) the acceler ati on during the first 10s. (ii ) the total di stance travelled. (iii) the deceleration during the last 10s.
The figure below is a screenshot of part of a BeyondLabz data table for an object in free fall. Match the characteristic with its correct description. Copy Data t(sec) X (m) Y (m) Vx (m/s) Vy (m/s) ax (m/s) ay (m/s') 0.000 0.0935 6.0075 0.0000 0.0000 0.0000 0.0000 0.133 0.0935 5.9747 0.0000 -0.4924 0.0000 -3.7019 0.261 0.0935 5.8814 0.0000 -0.9662 0.0000 -3.7019 0.382 0.0935 5.7374 0.0000 -1.4141 0.0000 -3.7019 0.512 0.0935 5.5222 0.0000 -1.8954 0.0000 -3.7019 0.632 0.0935 5.2681 0.0000 -2.3396 0.0000 -3.7019 0.760 0.0935 4.9384 0.0000 -2.8134 0.0000 -3.7019 0.884 0.0935 4.5610 0.0000 -3.2725 0.0000 -3.7019 1.009 0.0935 4.1230 0.0000 -3.7352 0.0000 -3.7019 First row of data (t = 0 s) [ Choose ] [ Choose] Air resistance is NOT included in the experiment This data point should be INcluded when analyzing data. Air resistance IS included in the experiment. This data point should be EXcluded when analyzing data. Acceleration (y-direction) columnn