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Question

Find work done by force F on A during 100 m displacement.

4000 J
8000 J
16000 J
12000 J

A

8000 J

B

4000 J

C

12000 J

D

16000 J

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Solution

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$(W_{F})_{o n A} = F Δ S c o s θ$
$= 120 \times 100 \times c o s 0^{\circ}$
$= 12000 J$

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