A ball rolls onto the path of your car as you drive down a quiet neighborhood street. To avoid hitting the child that runs to retrieve the ball, you apply your brakes for 1.28 s. The car slows down from (14.51 +4.50k)m/s to (8.251 +3.50k)m/s. The mass of the car is 1.28 x 10³ kg. (a) During the time the brakes were applied, what was the average force exerted on your car? Express your answer in vector form. F= x How do you calculate the acceleration given the initial and final speeds, and the time of travel? Review rules of vector algebra.N (b) How far did the car move while braking? m

A ball rolls onto the path of your car as you drive down a quiet neighborhood street. To avoid hitting the child that runs to retrieve the ball, you apply your brakes for 1.28 s. The car slows down from (14.51 +4.50k)m/s to (8.251 +3.50k)m/s. The mass of the car is 1.28 x 10³ kg. (a) During the time the brakes were applied, what was the average force exerted on your car? Express your answer in vector form. F= x How do you calculate the acceleration given the initial and final speeds, and the time of travel? Review rules of vector algebra.N (b) How far did the car move while braking? m

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter5: Displacement And Force In Two Dimensions

Section: Chapter Questions

Problem 8STP

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