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30 August, 15:01

What is the value of work done on an object when a. 10-newton force moves it 30 meters and the angle between. the force and the displacement is 25°? A. 2.7 x 10^2 joules. B. 3.0 x 10^2 joules. C. 7.5 x 10^2 joules. D. 0 joules ...

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  1. 30 August, 17:29
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    W - Work, F - force, d - displacement;

    W = F · d · cos α

    where F = 10 N, d = 10 m and α = 25°

    W = 10 N · 30 m · cos 25°

    W = 271.89 J ≈ 2.7 · 10² J

    Answer:

    A) 2.7 x 10² Joules
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