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A force of (3 i^+4 j^) Newton acts on a body and displaces it by (3 i^+4j^) m. The work done by the force is

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a

10 J

b

12 J

c

16 J

d

25 J

answer is D.

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Detailed Solution

W=F→.s→=(3i^+4j^).(3i^+4j^)=9+16=25 J

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