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A block of mass 10 kg, moving in x-direc...

A block of mass 10 kg, moving in x-direction with a constant speed of `10ms^(-1)`, is subjected to a retarding force `F=0.1xxJ//m` during its travel from x=20 m to 30 m. Its final KE will be

A

450 J

B

275 J

C

250 J

D

475 J

Text Solution

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The correct Answer is:
C
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