A student pushes a block of mass m=2.5 kg with a horizontal force of F= 60 N over a distance of 50 meters along a rough surface as shown below. The coefficient of friction between the block and the surface is u= 0.375 and the block starts from rest. Draw a free- body diagram for the block and determine; a. The magnitude of the frictional force. b. The magnitude of the work done by the frictional force. c. The magnitude of the work done by the student. d. Use the Work-Energy Theorem to determine the block's final velocity when its displacement equals 50 meters. c. Determine the block's final kinetic energy. F = 60 N DU 2.5-kg μ-0.375 50-m 4" 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11 12 13 62.40 2680 150 3000 459.4 24.50 12.00 12.37 2540 9.188 57.39 8.735 3682 14. 5.325 15. 45.08

A student pushes a block of mass m=2.5 kg with a horizontal force of F= 60 N over a distance of 50 meters along a rough surface as shown below. The coefficient of friction between the block and the surface is u= 0.375 and the block starts from rest. Draw a free- body diagram for the block and determine; a. The magnitude of the frictional force. b. The magnitude of the work done by the frictional force. c. The magnitude of the work done by the student. d. Use the Work-Energy Theorem to determine the block's final velocity when its displacement equals 50 meters. c. Determine the block's final kinetic energy. F = 60 N DU 2.5-kg μ-0.375 50-m 4" 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11 12 13 62.40 2680 150 3000 459.4 24.50 12.00 12.37 2540 9.188 57.39 8.735 3682 14. 5.325 15. 45.08

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter4: The Laws Of Motion

Section: Chapter Questions

Problem 14CQ: Give reasons for the answers to each of the following questions: (a) Can a normal force be...

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