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A body of mass 0.5 kg travels in a strai...

A body of mass 0.5 kg travels in a straight line with velocity `v= kx^(3//2)` where `k=5m^(-1//2)s^(-1)`. The work done by the net force during its displacement from x=0 to x=2 m is

A

15 J

B

50 J

C

10 J4%

D

100 J

Text Solution

Verified by Experts

The correct Answer is:
B
`vecA=(dvecv)/(dt)=2/2a^(2)x^(2),vecF=mvecA`
`W=int_(0)^(2)F ds =50J`
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