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Summary for Time, Height and Range

The horizonta...

Question

The horizontal range is four times the maximum height attained by a projectile. The angle of projection is

A

90^{\circ}

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B

60^{\circ}

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C

45^{\circ}

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D

30^{\circ}

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Solution

The correct option is C $45^{\circ}$
$R = 4 H c o t θ, i f R = 4 H t h e n c o t θ = 1 \Rightarrow θ = 45^{\circ}$

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