A cheerleader lifts his 68 kg partner straight up off the ground a distance of 0.72 m before releasing her. Assume the partner's velocity is zero at the beginning and the end of the lift. The acceleration of gravity is 9.8 m/s

Principles of Physics: A Calculus-Based Text
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Author:Raymond A. Serway, John W. Jewett
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Chapter6: Energy Of A System
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Answer in units of J
007
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A cheerleader lifts his 68 kg partner straight
up off the ground a distance of 0.72 m before
releasing her. Assume the partner's velocity
is zero at the beginning and the end of the lift.
The acceleration of gravity is 9.8 m/s².
If he does this 22 times, how much work has
he done?
Answer in units of J.
panor
008 (part 1 of 2) 10.0 points
Transcribed Image Text:PDF Answer in units of J 007 10.0 points A cheerleader lifts his 68 kg partner straight up off the ground a distance of 0.72 m before releasing her. Assume the partner's velocity is zero at the beginning and the end of the lift. The acceleration of gravity is 9.8 m/s². If he does this 22 times, how much work has he done? Answer in units of J. panor 008 (part 1 of 2) 10.0 points
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