A body of mass 5 kg is moving with velocity 2ms−1. Calculate its linear momentum.
Momentum = mass x velocity momentum = 5x2 = 10 kg m/s
A body of mass 5 kg is moving along the x-axis with a velocity 2 ms−1. Another body of mass 10 kg is moving along the y-axis with a velocity √3 ms−1. They collide at the origin and stick together. The final velocity of the combined mass is