A 20 kg box of textbooks rests on a ramp that makes an angle with the horizontal. The coefficient of kinetic friction is 0.20, and the coefficient of static friction is 0.30. Solve for the following: a.) As the angle is increased, find the minimum angle at which the box starts to slip. b.) At this angle, find the acceleration once the box has begun to move. c.) At this angle, how fast will the box be moving after it has slid 2 m along the loading ramp?

A 20 kg box of textbooks rests on a ramp that makes an angle with the horizontal. The coefficient of kinetic friction is 0.20, and the coefficient of static friction is 0.30. Solve for the following: a.) As the angle is increased, find the minimum angle at which the box starts to slip. b.) At this angle, find the acceleration once the box has begun to move. c.) At this angle, how fast will the box be moving after it has slid 2 m along the loading ramp?

College Physics

10th Edition

ISBN:9781285737027

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter4: The Laws Of Motion

Section: Chapter Questions

Problem 84AP: In Figure P1.84, the pulleys and the cord are light, all surfaces are frictionless, and the cord...

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