A 62.6 kg runner has a speed of 5.10 m/s at one instant during a long-distance event. How much net work (in J) is required to triple her speed?

University Physics Volume 1
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Chapter7: Work And Kinetic Energy
Section: Chapter Questions
Problem 72P: A 500-kg dragster accelerates from rest to a final speed of 110 m/s in 400 m (about a quarter of a...
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A 62.6 kg runner has a speed of 5.10 m/s at one instant during a long-distance event.

How much net work (in J) is required to triple her speed?

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