2. A 5-kg block, initially held at rest, is at the top of a rough plane inclined at 30°. The coefficient of kinetic friction between the block and the incline is 0.2, the coefficient of static friction is 0.4. a) What minimum force (magnitude and direction) will start motion of the block up the incline? Present free-body diagram. Block is released from rest. As the block slides down the incline: b)Find the acceleration of the block, present free-body diagram c) Determine the magnitude and the direction of the force of friction acting on the block.

2. A 5-kg block, initially held at rest, is at the top of a rough plane inclined at 30°. The coefficient of kinetic friction between the block and the incline is 0.2, the coefficient of static friction is 0.4. a) What minimum force (magnitude and direction) will start motion of the block up the incline? Present free-body diagram. Block is released from rest. As the block slides down the incline: b)Find the acceleration of the block, present free-body diagram c) Determine the magnitude and the direction of the force of friction acting on the block.

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 42P: A block of mass 3m is placed on a frictionless horizontal surface, and a second block of mass m is...

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