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A particle of mass m is driven by a mach...

A particle of mass m is driven by a machine that delivers a constant power k watts. If the particless starts from rest, the force on the particle at time t is

A

`(1)/(sqrt(mk)t^((-1)/(2))`

B

`sqrt((mk)/(2))t^((-1)/(2))`

C

`sqrt(mk)t^((-1)/(2))`

D

`sqrt(2mk)t^((-1)/(2))`

Text Solution

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The correct Answer is:
B
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