Concept explainers
a.
Work done by worker.
a.
Answer to Problem 58A
Work done by worker is
Explanation of Solution
Given:
Horizontal force is
Displacement in the direction of force is
Formula used:
Work done is given by,
Calculation:
Putting the values in equation (1)
b.
Work done by gravity.
b.
Answer to Problem 58A
Work done by gravity is
Explanation of Solution
Given:
Vertical displacement is 3.0m.
Weight of crate is
Formula used:
Work done by gravity is given as,
Calculation:
As displacement is opposite to gravity,
So, from (2)
c.
Energy transformed by friction.
c.
Answer to Problem 58A
Energy transformed by friction
Explanation of Solution
Given:
Length of plane is 5.0m.
Weight of crate is
Horizontal force is
Coefficient of friction is
Formula used:
Energy transformed by friction is,
Calculation:
From (3)
Chapter 10 Solutions
Glencoe Physics: Principles and Problems, Student Edition
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