A cannon on a level plane is aimed at an angle above the horizontal and a shell is fired with a muzzle velocity 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
D sin -
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B
D cos -
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C
D tan -
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D
D tan -
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Solution
The correct option is C D tan - Equation of trajectory for oblique projectile motion
y = xtanθ−gx22u2cos2θ
Substituting x = D and u = v0 h = Dtanθ−gD22u20cos2θ