The momentum principle can then be written as the following equation. The initial momentum of the object is 1 kilogram-meter/second and with a force of 1 N for 1 sec, the final momentum is 2 kg*m/s.

Segment 4A: Momentum and Impulse We define the terms momentum and impulse.

The equations of motion can be used to show that impulse is equal to the change in momentum. A squash ball of mass 25 g is moving from left to right at 3.2 ms-1. It is hit by a squash racquet ...