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07-11-2019
Physics

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while a block slides forward 1.35 m, a force pulls back at a 135 direction, doing -17.8 J of work. what is the magnitude of the force?(unit=N)

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07-11-2019

Answer:

18.6 N

Explanation:

Work = force × distance

W = (F cos θ) d

-17.8 J = (F cos 135°) (1.35 m)

F = 18.6 N

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