A man drops a ball downside from the roo...

A man drops a ball downside from the roof of a tower of height `400` metres. At the same time another ball is thrown upside with a velocity `50 "meter"//sec` from the surface of the tower, then they will meet at which height from the surface of the tower.

100m

320m

80m

240m

Text Solution

Verified by Experts

The correct Answer is:

`h_1 + h_2 = 400 rArr 50t = 400 rArr r = 8 sec`
`h_2 = 400 - 1/2 xx 10 xx 64 = 80m`

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