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Ball-1 is dropped from the top of a buil...

Ball-1 is dropped from the top of a building from rest. At the same moment, ball-2 is thrown upward towards ball-1 with speed 14 m/s from a point 21 m below the top of building How far will the ball-1 have dropped when it passes ball-2. (Assume `g=10 m/s^2`)

A

`45/4 m`

B

`52/6 m`

C

`37/2 m`

D

`25/2 m`

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TARGET PUBLICATION-Motion in a plane-Exercise
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