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An object moved forward 10 meters and then comes back 5 meter all with a constant force of 5 N, what is the work done by the force?

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An object moved forward 10 meters and then comes back 5 meter all with a constant force of 5 N, what is the work done by the force?

(a) 5 Joule

(b) 25 Joule

(c) 50 Joule

(d) 75 Joule

I got this question in an online quiz.

The origin of the question is Energy Types in portion Liquids and Gases in Equilibrium with Solids and Energy: Terminology, Concepts, and Units of Basic Chemical Engineering

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Correct answer is (b) 25 Joule

To explain: Work = (10 – 5)* 5 = 25 Joule.

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