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A body of mass 2 kg is projected with an...

A body of mass `2 kg` is projected with an initial velocity of `5 ms^(-1)` along a rough horizontal table. The work done on the body by the frictional forces before it is brought to rest is

A

250 J

B

25 J

C

`-250 J`

D

`-25 J`

Text Solution

Verified by Experts

The correct Answer is:
D
`W_(f) = ((1)/(2) mv_(f)^(2) - (1)/(2) m v_(i)^(2))`.
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