Question

State Newton's second law of motion.

Answer 1

Newton's second law of motion states that the rate of change of momentum of a body is equal to the net external force applied to it and this change in momentum occurs in the direction of the net force.
$Force=\frac{Changeinmomentum}{Time}$
$or,F=\frac{P_f-P_i}{t}$
where, $P_f=$Final momentum
$P_i=$Initial momentum
$t=$Time for which the force acts