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A cannon on a level plane is aimed at an...

A cannon on a level plane is aimed at an angle `theta` above the horizontal and a shell is fired with a muzzle velocity `v_(0)` towards a vertical cliff a distance D away. Then the height from the bottom at which the shell strikes the side walls of the cliff is

A

`Rtanalpha-1/2(gR^(2))/(v_(0)^(2)cos^(2)alpha)`

B

`Rtanalpha-1/2(gR^(2))/(v_(0)^(2))`

C

`Rtanalpha-1/2(gR^(2))/(v_(0)^(2)sin^(2)alpha)`

D

`Rtanalpha+1/2(gR^(2))/(v_(0)^(2))`

Text Solution

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The correct Answer is:
B
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