QUESTION 7 MCED Sept 2022 Ball P. with a mass m. is initially rolling EASTWARDS when it collides with an identical ball Q, which is rolling WESTWARDS at 15 ms1. Ignore friction and any rotational effects of the balls. The graph below shows how the velocity of ball P changes with time. Velocity (m.s°¹) -10 0 10 Time (9 3 f linear momentum.
calculate the velocity of ball Q after the collision​