Solve the following question given below:
Question: A billiard ball rolling across a table at 1.40 m/s makes a head-on elastic collision with an identical ball. Find the speed of each ball after the collision when each of the following occurs.
I: The second ball is initially at rest.
first ball:_________________m/s
second ball:__________________________m/s
II: The second ball is moving toward the first at a speed of 1.10 m/s
first ball:________________m/s
second ball:__________________________m/s
III: The second ball is moving away from the first at a speed of 0.90 m/s.
first ball:_____________________m/s
second ball:_________________________m/s
Rework your answer from the beginning and check each and every step carefully for above question.