કણ પર F બળ લાગતાં તે બળની દિશામાં v વેગથી

Given, Velocity $=v -1 \, force = F$

We know that work done is equal to the product of force and displacement

$W=f \times x$

Divided by t in both sides then we get,

$\frac{w}{t}=\frac{f x}{t} \Rightarrow \frac{x}{t}=v \& \frac{w}{t}=p$

Therefore $p=f\times v$