A ball is dropped from a bridge at a hei...

A ball is dropped from a bridge at a height of 176.4 m over a river. After 2s a second ball is thrown straight downwards. What should be the initial velocity of the second ball so that both hit the water simultaneously ?

2.45 m/s

49 m/s

14.5 m/s

24.5 m/s

Text Solution

Verified by Experts

The correct Answer is:

`F = v_("rel") ((dm)/(dt))`

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