After applying its brakes on a dry road, a 1,000 kg car moving at vo = 40 m/s requires a minimum distance d of 50 m to come to a complete stop without skidding as shown in the figure below. Vo d V=0 a) Find the car's acceleration. b) Find the frictional force exerted on the car by the road. c) Find the coefficient of static friction.
After applying its brakes on a dry road, a 1,000 kg car moving at vo = 40 m/s requires a minimum distance d of 50 m to come to a complete stop without skidding as shown in the figure below. Vo d V=0 a) Find the car's acceleration. b) Find the frictional force exerted on the car by the road. c) Find the coefficient of static friction.
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 71A
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Step 1: State the given values, the values to be calculated and the formulae necessary.
VIEWStep 2: Use the third kinematic equation to calculate the acceleration on the body.
VIEWStep 3: Use Newton's second law to calculate the frictional force exerted on the car.
VIEWStep 4: Calculating the coefficient of friction.
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