A man pushes a lawn mower on a level lawn with a force of 201 N. If 44% of this force is directed forward, and 65 W of power is expended in pushing the mower 5.6 m, how much time is spent in pushing the mower this distance?
A man pushes a lawn mower on a level lawn with a force of 201 N. If 44% of this force is directed forward, and 65 W of power is expended in pushing the mower 5.6 m, how much time is spent in pushing the mower this distance?
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
Chapter6: Energy Of A System
Section: Chapter Questions
Problem 3OQ
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A man pushes a lawn mower on a level lawn with a force of 201 N. If 44% of this force is directed forward, and 65 W of power is expended in pushing the mower 5.6 m, how much time is spent in pushing the mower this distance?
Expert Solution
Step 1
Given Data:
The force with which the man pushes the lawn mover is given as f = 201N.
The percentage of force f in forward direction is given as = 44%.
The power required in pushing the lawn mover 5.6m is given as p=65W.
The distance moved by the lawn mover is given as d = 5.6m.
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