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A particle is fired from A in the diagon...

A particle is fired from `A` in the diagonal plane of a building of dimension `20m`(length) `xx` `15m` (breadth) `xx` `12.5 m`(height), just clears the roof diagonally & falls on the other side of the building at `B`.It is observed that the particle is travelling at an angle `45^(@)` with the horizontal when it clears the edges `P` and `Q` of the diagonal. Take `g=10m//s^(2)`.
The range that is `AB` will be:

A

`5sqrt10m`

B

`25sqrt3m`

C

`5sqrt15m`

D

`25sqrt5m`

Text Solution

Verified by Experts

The correct Answer is:
B
Range `(U^(2) sin 2theta)/g`
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