Impulse can be obtained from the-

Concept:

Impulse (J): It is defined as the integral of force with respect to time. It is a vector quantity. Or it is also defined as a change in the linear moment (P) with respect to time.

J = F  × dt = ΔP 

According to Newton's second law, the Force can be defined as a moment per time.

∴  \({\bf{F}} = \frac{{{\bf{d}}\left( {{\bf{mv}}} \right)}}{{{\bf{dt}}}}\)

This is known as the Impulse momentum equation.

Linear impulse = \(\overline P\) = change in momentum in that direction. 

Application:

(i) A cricket player lowers his hands while catching the ball: by doing so the time of impact increases and hence the effect of force decreases.

(ii) When a person falls from a certain height on the floor, he receives more injuries as compared to falling on a heap of sand. It is because of increasing the time of impact hence decreasing the impact of force.