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Q.

A force of F=(3+5x)i^N displaces a particle from (1,0,0)m to (3,5,-2) m. The work done is

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a

54J

b

28J

c

-54J

d

26J

answer is D.

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Detailed Solution

W=∫F→⋅dx→=∫(3+5x)dxW=3∫13 dx+5∫13 xdxW=3[x]13+5x2213=(3×2)+52×8W=6+20=26J

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