The velocity vs. time graph for an object moving along a straight path is shown in Figure P2.22.(m/s)1015t(s)202-4-6Figure P2.22(a) Find the average acceleration of the object during the time intervals 0 to 5.0 s, 5.0 s to 15 s, and 0 to 20 s.O s to 5.0 sm/s25.0 s to 15.0 sm/s2O s to 20.0 sm/s2(b) Find the instantaneous accelerations at 2.0 s, 10 s, and 18 s.2.0 sm/s210.0 sm/s218.0 sm/s2

Scenario – Velocity time graph of a particle is plotted in graph showing X- axis shows velocity…

Answered: The velocity vs. time graph for an…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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A car is moving at a velocity of 20 m/s. The car then accelerates uniformly at 1.8 m/s2. The car continues at the same acceleration until it reaches a velocity of 25 m/s, which is the legal speed limit. What is the distance the car travels in while accelerating?
A particle moves in one dimension in such a way that its velocity is given by v(t) = (8 m/s3)t2 - 10 m/s. Its position at t=0 is 0. a. Find the particle's acceleration at t=5 seconds. b. What is its position at t=2 seconds?
17. Figure P2.17 shows a graph of v, versus t for the motion of a motorcyclist as he starts from rest and moves along the road in a straight line. (a) Find the average accel eration for the time interval0 to t- 6.00 s. (b) Esti- mate the time at which the acceleration has its greatest positive value and the value of the acceleration at that instant. (c) When is the acceleration zero? (d) Estimate the maximum negative value of the acceleration and the time at which it occurs. V^ (m/s) 10 6 4 4 6 1012 Figure P2.17
the would be a realistic position graph. 20. What are the signs (positive or nega- tive) of the (a) position y, (b) velocity V. and (c) acceleration a, for the particle in Figure P2.207 FIGURE P2.20 0
Q2. a) For the displacement equation, s = t2 +t-5, find the velocity and acceleration equations and plot each equation for the first 5 seconds. b) Compute your average velocity in the following two cases: (a) You walk 73.2 m at a speed of 1.22 m/s and then run 73.2 m at a speed of 3.05 m/s along a straight track. (b) You walk for 1.00 min at a speed of 1.22 m/s and then run for 1.00 min at 3.05 m/s along a straight track. (c) Graph x versus I for both cases and indicate how the average velocity is found on the graph.
A runner is training for an upcoming road race and sets out for a weekend endurance run. In order to track the pace of the run, the runner records time splits for the entire period. This allows the runner to produce the pictured velocity versus time graph. The run is broken into six segments. 4.75 4.50 - 4.25 - 4.00 - 3.75 - 3.50 - 3 2. 6. 3.25 1 3.00 2.75 2.50 - 2.25 2.00 + 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100105 Time (min) The average acceleration of the runner during segment 1 is zero. O positive. negative. flat. Velocity (m/s) 4.
A motorboat starting from rest on a straight travels in straight line on a lake. A. If the boat achieves a speed of 8.0 m/s in 10s,what is the boats average acceleration? B. Then, in 5.0 more seconds, the boats speed is 12m/s. What is the boats average acceleration for the total time?
A test car travels in a straight line along the x-axis. The graph in Fig. E2.11 shows the car’s position x as a function of time. Find its instantaneous velocity at points A through G
5. Your motion along the x-axis begins at rest and at x= 0. The motion consists of acceleration at 2.00 m/s2for 10.0 s, a time period of 6.00 seconds with no acceleration, and then deceleration at -1.00 m/s2for 20.0 s resulting in a final speed of zero. The total distance traveled is 420 m. What is the average speed during this motion? Give answer to 3 significant figures. Help solve this problem, thanks!
1. In this problem assume the positive direction is up and the negative direction is down and that the floor is zero position. a. A ball starts 1.5 m above the floor. The ball is dropped, it hits the floor and bounces. Make a sketch of the position vs. time graph you would expect as the ball falls, hits the floor, bounces back up, then falls to hit the floor again. Which kinematic equation describes the position of the ball, as time passes, while it is in the air? b. Make a sketch of the velocity vs. time graph for the ball as it falls, hits the floor, bounces back up, and falls to hit the floor. Which kinematic equation describes the velocity for the ball, in terms of time, while it is in the air? c. Make a sketch of the acceleration vs. time graph for the ball as it falls, hits the floor, bounces back up, and falls to hit the floor. What will be the acceleration of the ball as it falls? What will be its acceleration as it rises?
A person runs 800 m at an average speed of 6 m/s and then the next 800 m at an average speed of 8 m/s.a. Calculate the total time required.b. Find the average speed.

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