2. A 4.0 kg block is pulled along a horizontal surface with an applied force of F=20 N and 0=30°. The kinetic friction coefficient between the block and the surface is 0.40. Assume the positive direction is to the right. a. Draw a free body diagram of the block including both horizontal and vertical forces. b. Determine the friction force acting on the block. c. Determine the horizontal acceleration of the block. Include the sign. d. If the block starts from rest and the force is applied for 5.0 s determine the velocity of the block.
2. A 4.0 kg block is pulled along a horizontal surface with an applied force of F=20 N and 0=30°. The kinetic friction coefficient between the block and the surface is 0.40. Assume the positive direction is to the right. a. Draw a free body diagram of the block including both horizontal and vertical forces. b. Determine the friction force acting on the block. c. Determine the horizontal acceleration of the block. Include the sign. d. If the block starts from rest and the force is applied for 5.0 s determine the velocity of 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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