Question

a ball of mass 0.5 kg moving at 10ms-¹ collides with another ball of equal mass at rest.if the two ball move off together after the impacts,calculate their common velocity​

Answer 1

5

Step-by-step explanation:

Ball one before collision

0.5 kg * 10 m/s = 5 kg m/s

Both balls moving off together

5 kg m/s = (0.5 + 0.5kg) * x where x is the speed of the 2 of them together.

5 = 1 * x

x = 5 m/s