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When an average force F is exerted over a certain distance on a shopping cart of mass

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When an average force F is exerted over a certain distance on a shopping cart of mass m, its kinetic energy increases by ½mv2.
(a) Use the work–energy theorem to show that the distance over which the force acts is mv2/2F.
(b) If twice the force is exerted over twice the distance, how does the resulting increase in kinetic energy compare with the original increase in kinetic energy?

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a From Fd KE 12 mv 2 d mv 2 F mv 2 2F ...View the full answer


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Conceptual Physical Science

Conceptual Physical Science

ISBN: 978-0134060491

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Authors: Paul G. Hewitt, John A. Suchocki, Leslie A. Hewitt

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