As a ball falls under the influence of gravity, does gravity do positive work or negative work? Provide a mathematical explanation. 4. Set up the preceding problem starting from the definition of work as a path integral (with two vectors under the integral with a dot product), and evaluate it showing all steps. Assume the box falls from height h; to hf where hi > hf.

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 102CP: Find the work done by the same force in Example 7.4, between the same points, A=(0,0) and B=(2m,2m)...
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As a ball falls under the influence of gravity, does gravity do positive work or negative work? Provide a
mathematical explanation.
4. Set up the preceding problem starting from the definition of work as a path integral (with two vectors under
the integral with a dot product), and evaluate it showing all steps. Assume the box falls from height h; to hf
where hi > hf.
Transcribed Image Text:As a ball falls under the influence of gravity, does gravity do positive work or negative work? Provide a mathematical explanation. 4. Set up the preceding problem starting from the definition of work as a path integral (with two vectors under the integral with a dot product), and evaluate it showing all steps. Assume the box falls from height h; to hf where hi > hf.
W = -mgAy where Ay is negative.
Transcribed Image Text:W = -mgAy where Ay is negative.
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