impulse. in classical mechanics, the impulse of the net external force on an object is equal to the change in its momentum, which is called the momentum theorem. unlike momentum, which is a state quantity, impulse is a process quantity. the impulse of a constant force is the product of the force and the time it acts. impulse expresses the physical quantity that has an accumulated effect on a particle over a period of time, and is the reason for changing the mechanical motion state of the particle.

impulse theorem calculator

I=F*ΔT

f = force

δt = time change