A ball is dropped at t = 0 from a height...

A ball is dropped at t = 0 from a height 12 m above the ground. At the instant of release a very massive platform is at a height 4 m above the ground and moving upward with velocity `3 m//s` as shown in the figure. Find :
(a) the height reached by the ball after a perfectly elastic impact with the wall.
the time when the ball strikes the platform second time.

Text Solution

Verified by Experts

The correct Answer is:

`[19.8"m above the ground" 3.6 s]`

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