Question

20 )A boy pushes a box through a distance of 8 m with a force of 50 N.Calculate the work done by him.
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Answer 1

Answer:

We are given that

Force (F)=250N, displacement (s)=50w

∴ Work done=F×S

=250×50

=1250Joule

Here, the work done is negative.

Explanation:

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Answer 2

Answer:

400 Nm / 400J

Explanation:

Work = Force × Displacement

=50N × 8m

=400Nm / 400J