Question

A ball is thrown vertically upward direction with an initial speed of 100 m/s , simultaneously second ball is dropped from the height of 200m.Find at what height from ground and what time the two balls meet.
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Answer 1

Answer:

Ball thrown vertically will suffer retardation of 'g'.

time taken by gravity to reduce balls speed to zero.

0=100+(−10)t

Ball will be at its peak at t=10sec..It will take

same amount of time to comeback to ground total time T=20sec.

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