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The speed v reached by a car of mass m i...

The speed v reached by a car of mass m in travelling a distance x, driven with constant power P, is given by

A

`v=(3x P)/( m)`

B

`v=((3x P)/(m))^(1//2)`

C

`v=((3xP)/(m))^(1//2)`

D

`v=((3 xP )/( m))^(1//3)`

Text Solution

Verified by Experts

The correct Answer is:
C
`P= Fv=mv (dv )/(dx ) v " or " v^2 (dv )/(dx )=(P)/(m ) implies v =((3x p)/( m))^(1//3)`
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