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A ball is dropped from the top of a buil...

A ball is dropped from the top of a building. The ball takes `0.5s` to fall the `3m` length of a window some distance from the to of the building. If the speed of the ball at the top and at the bottom of the window are `v_(T)` and `v_(T)` respectively, then `(g=9.8m//s^(2))`

A

`V_(T)+V_(B)=12ms^(-1)`

B

`V_(T)-V_(B)=12ms^(-1)`

C

`V_(B)V_(T)=1ms^(-1)`

D

`(V_(B))/(V_(T))=1ms^(-1)`

Text Solution

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The correct Answer is:
A
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