Use the worked example above to help you solve this problem. In a crash test, a car of mass 1.41 x 103 kg collides with a wall and rebounds as shown in the figure. The initial and final velocities of the car are v, = -14.1 m/s and v, = 2.32 m/s, respectively. If the collision lasts for 0.156 s, find the following. (a) the impulse delivered to the car due to the collision kg · m/s (b) the size of and direction of the average force exerted on the car (Indicate the direction with the sign of your answer.) EXERCISE HINTS: GETTING STARTED I I'M STUCK! Use the values from PRACTICE IT to help you work this exercise. Suppose the car doesn't rebound off the wall, but the time interval of the collision remains at 0.156 s. In this case, the final velocity of the car is zero. Find the average force exerted on the car. (Indicate the direction with the sign of your answer.)

Use the worked example above to help you solve this problem. In a crash test, a car of mass 1.41 x 103 kg collides with a wall and rebounds as shown in the figure. The initial and final velocities of the car are v, = -14.1 m/s and v, = 2.32 m/s, respectively. If the collision lasts for 0.156 s, find the following. (a) the impulse delivered to the car due to the collision kg · m/s (b) the size of and direction of the average force exerted on the car (Indicate the direction with the sign of your answer.) EXERCISE HINTS: GETTING STARTED I I'M STUCK! Use the values from PRACTICE IT to help you work this exercise. Suppose the car doesn't rebound off the wall, but the time interval of the collision remains at 0.156 s. In this case, the final velocity of the car is zero. Find the average force exerted on the car. (Indicate the direction with the sign of your answer.)

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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