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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=`ax^(3//2)` where a=`5m^(-1/2)s^(-1)` . What is the work done by the net force during its displacement from =0 to x=2m?

A

`1.5J`

B

`50J`

C

`10J`

D

`100j`

Text Solution

Verified by Experts

The correct Answer is:
B
`v=5x^(3//2)`
`W_(n et)=(1)/(2)mv^(2)=(1)/(2)(0.5)(25x^(3))`
`(1)/(2)xx(1)/(2)xx25xx8=50J`
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