$A$ force of $10\, N$ moves a body with a constant speed of $2\, m s^{-1}$. Calculate the power of the body.

(20 W) The power $P$ is defined as the product of force $F$ and velocity $v$ when the force is applied in the direction of motion.
Given:
Force $F = 10\, N$
Velocity $v = 2\, m s^{-1}$
Formula:
$P = F \times v$
Calculation:
$P = 10\, N \times 2\, m s^{-1} = 20\, W$
Therefore,the power of the body is $20\, W$.