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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.

A

100m

B

320m

C

80m

D

240m

Text Solution

Verified by Experts

The correct Answer is:
C
`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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