Asked by Jennifer

In the game of billiards, all the balls have approximately the same mass, about 0.20 kg. The cue ball moving west with a speed of 4.5m/s strikes another ball at rest. After the collision the cue ball moves at an angle of 55degree north of west and the other ball at an angle of 25 south of west. What is the speed of the cue ball and the other ball after the collision?
Answered by bobpursley
use momentum in x,ydirectrions, and conservation of energy.