Which one of the following statement is an incorrect statement?

Options

A. work done by a force `W=F.dr cos theta`
B. kinetic energy = `(p^(2))/(2m)`
C. Potential energy of a body moving with constant velocity is
`U=int F_(ext).dvecr`
D. Power = Force `xx` Velocity

Answer

B

Explanation

`K.E=(1)/(2)mv^(2)`
`=(1)/(2)((mv)^(2))/(m)=(p^(2))/(2m)`