@pf mentor
My point is m(e)*v(e)+m(b)*v(b) must be unchanged after colission. Since m(e)*v(e) is equal to zero and there is no (negligible) change in m(b), the final velocity before colission must be equal to the initial velocity after colission. If the initial velocity while bouncing is same...
Does a free falling ball drops on Earth violate this theory?
If we consider the ball and Earth in an isolated system then the ball should continue to drop over time.
If the impulse given is extremely negligible that it doesn't cause any significant change in the path of earth, then the...