A 1400 kg car begins sliding down a 15.0 ° inclined road with a speed of 33.0 km/h.The engine is turned off, and the only forces acting on the car are a net frictional force from the road and the gravitational force. After the car has traveled 53.0 m along the road, its speed is 44.0 km/h. (a) How much is the mechanical energy of the car reduced because of the net frictional force? (b) What is the magnitude of that net frictional force?
A 1400 kg car begins sliding down a 15.0 ° inclined road with a speed of 33.0 km/h.The engine is turned off, and the only forces acting on the car are a net frictional force from the road and the gravitational force. After the car has traveled 53.0 m along the road, its speed is 44.0 km/h. (a) How much is the mechanical energy of the car reduced because of the net frictional force? (b) What is the magnitude of that net frictional force?
University Physics Volume 1
18th Edition
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:William Moebs, Samuel J. Ling, Jeff Sanny
Chapter7: Work And Kinetic Energy
Section: Chapter Questions
Problem 7CQ: As a young man, Tarzan climbed up a vine to reach his tree house. As he got older, he decided to...
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A 1400 kg car begins sliding down a 15.0 ° inclined road with a speed of 33.0 km/h.The engine is turned off, and the only forces acting on the car are a net frictional force from the road and the gravitational force. After the car has traveled 53.0 m along the road, its speed is 44.0 km/h. (a) How much is the mechanical energy of the car reduced because of the net frictional force? (b) What is the magnitude of that net frictional force?
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