A student wearing frictionless in-line skates on a horizontal surface is pushed by a friend with a constant force of 45 N. How far must the student be pushed, starting from rest, so that her final kinetic energy is 352 J?

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21-07-2016
Physics

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A student wearing frictionless in-line skates on a horizontal surface is pushed by a friend with a constant force of 45 N. How far must the student be pushed, starting from rest, so that her final kinetic energy is 352 J?

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meerkat18 meerkat18 · Answer 1 · 2016-07-22T02:02:25+02:00

Work is obtained by multiplying the force and the object's displacement. The force and displacement and force should be in the same direction in order to have work.
W = F x d
d = W / F
Substituting the known values,
d = 352 J / 45 N = 7.82 m
Thus, the displacement of the student is 7.82 m.

mohammedmohammednur mohammedmohammednur · Answer 2 · 2021-11-10T10:15:07+01:00

mohammedmohammednur mohammedmohammednur

10-11-2021

Answer:

This is just so you can mark the first answerer as the brainliest. They did a very good job in answering!

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