A ball is thrown vertically upward from the 12 metre level with an initial velocity Of 18 metres / second. At the same instant an open platform elevator passes the 5 metre level, moving upward with a constant velocity of 2 metre / second.
Determine :
A). When and where the ball will meet the elevator ,
B). the relative velocity of the ball with respect to the elevator when the ball hits the elevator.

UP 0 DOWN 0 0 0