Concept explainers
a.
To find: a function for net work in simplest form.
a.
Answer to Problem 30E
Explanation of Solution
Given information:
Kinetic change in energy = Work done by person − Work done by friction
=
Calculation:
Net work done = Change in kinetic energy
So, net work done is
b.
To find: a net work expended.
b.
Answer to Problem 30E
2000 Joules
Explanation of Solution
Given information:
Here,
d is displacement,
Calculation:
Substitute the values in the above formula and solve as follows:
Thus, net work done is 2000 Joules.
Chapter 1 Solutions
Advanced Mathematical Concepts: Precalculus with Applications, Student Edition
Additional Math Textbook Solutions
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