13) A worker pushes a wheelbarrow with a horizontal force of 50 N on level ground over a distance of 5m. If a friction force of 43 N acts on the wheelbarrow in a direction opposite that of the worker, what net work is done on the wheelbarrow by the worker? (A) 35 J (B)215 J (C) 250 J (D) 19 J

13) A worker pushes a wheelbarrow with a horizontal force of 50 N on level ground over a distance of 5m. If a friction force of 43 N acts on the wheelbarrow in a direction opposite that of the worker, what net work is done on the wheelbarrow by the worker? (A) 35 J (B)215 J (C) 250 J (D) 19 J

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 33P: A 5.0-kg box rests on a horizontal surface. The coefficient of kinetic friction between the box and...

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Concept explainers

Static and Kinetic Friction

Kinetic friction comes into existence when there are moving surfaces means in other words we can say that the force which comes into existing between moving surfaces is known as kinetic friction.

Question

13) A worker pushes a wheelbarrow with a horizontal force of 50 N on level ground over a distance of 5m.
If a friction force of 43 N acts on the wheelbarrow in a direction opposite that of the worker, what net
work is done on the wheelbarrow by the worker?
(A) 35 J
(B)215 J
(C) 250 J
(D) 10 J

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