Q.No.3.9: - Define impulse and show that how it is related to linear momentum?

Q.No.3.9: - Define impulse and show that how it is related to linear momentum?

Ans: - Impulse: -  If a very large force exert for a very short interval of time then product of such force and time is called impulse.

     Mathematically

Relation between impulse and linear momentum: -  

            According to Newton’s second law of motion, the force is defined as the rate of change of momentum.

          Thus if force F acting on a body for time ∆t, changes its momentum from mv_f to mv_i. Then the force is written as;



Hence, impulse is equal to the change of linear momentum.