A 1390 kg car moving at 6.00 m/s is initially traveling north along the positive direction of a y axis. After completing a 90° right-hand turn to the positive x direction in 5.00 s, the inattentive operator drives into a tree, which stops the car in 480 ms. In unit-vector notation, what is the impulse on the car during the turn? Î + Submit Answer Tries 0/40 In unit-vector notation, what is the impulse on the car during the collision? 2 + Tries 0/40 magnitude of the average force that acts on the car during the turn? Submit Answer What is the Submit Answer What is the Tries 0/40 magnitude of the average force that acts on the car during the collision? Submit Answer Tries 0/40 What is the direction of the average force during the turn? Submit Answer Tries 0/40 Post Discussion Send Feedback

A 1390 kg car moving at 6.00 m/s is initially traveling north along the positive direction of a y axis. After completing a 90° right-hand turn to the positive x direction in 5.00 s, the inattentive operator drives into a tree, which stops the car in 480 ms. In unit-vector notation, what is the impulse on the car during the turn? Î + Submit Answer Tries 0/40 In unit-vector notation, what is the impulse on the car during the collision? 2 + Tries 0/40 magnitude of the average force that acts on the car during the turn? Submit Answer What is the Submit Answer What is the Tries 0/40 magnitude of the average force that acts on the car during the collision? Submit Answer Tries 0/40 What is the direction of the average force during the turn? Submit Answer Tries 0/40 Post Discussion Send Feedback

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter11: Collisions

Section: Chapter Questions

Problem 8PQ

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A car crashes into a large tree that does not move. The car goes from 30 m/s to 0 in 1.3 m. (a) What impulse is applied to the driver by the seatbelt, assuming he follows the same motion as the car? (b) What is the average force applied to the driver by the seatbelt?
Sven hits a baseball (m = 0.15 kg). He applies an average force of 50.0 N. The ball had an initial velocity of 35.0 m/s to the right and a final velocity of 40.0 m/s to the left as viewed by a fan in the stands. a. What is the impulse delivered by Svens bat to the baseball? b. How long is his bat in contact with the ball?
A soccer player runs up behind a 0.450-kg soccer ball traveling at 3.20 m/s and kicks it in the same direction as it is moving, increasing its speed to 12.8 m/s. (a) What is the change in the magnitude of the balls momentum? (b) What magnitude impulse did the soccer player deliver to the ball? (c) What magnitude impulse would be required to kick the ball in the opposite direction at 12.8 m/s, instead? (See Section 6.1.)
A truck collides with a small, empty parked car. Explain your answers to the parts below. a. Compare the force exerted by the truck on the car with the force exerted by the car on the truck. b. Compare the impulse exerted by the truck on the car with the impulse exerted by the car on the truck. c. Compare the change in the trucks momentum with the change in the cars momentum.
A ball of mass 50.0 g is dropped from a height of 10.0 m. It rebounds after losing 75% of its kinetic energy during the collision process. If the collision with the ground took 0.010 s, find the magnitude of the impulse experienced by the ball.
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Estimate the magnitude of the momentum of a car on the highway.
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