Question

what is equation of change of momentum?

Answer 1

Hope this helps.....
Remember that the change in momentum of an object is equal to the Impulse on the object....

Answer 2

The result of the force acting for the given amount of time is that the object's mass either speeds up or slows down (or changes direction). The impulse experienced by the object equals the change in momentum of the object.

the equation therefore is p = m*v