- #1

- 369

- 19

I've tried to solve it but I've failed.

Here is what I got until now

P=power

v=velocity

m=mass

F=force

θ=angle force does with displacement

x=displacement

W=work

P = dW/dt = d([itex]\vec{F}\bullet\vec{x})/dt = \vec{F} \bullet \vec{v} + d\vec{F}/dt\bullet\vec{x} [/itex]

W = [itex] \int \vec{F}\bullet\ d \vec{x} = \int F.dx.cos(\theta) [/itex]

W = mv

^{2}/2

I don't know how to go on from here.