Question

A shot is fired from a point at a distance of 200 m from the foot of a tower 100 m high so that it just passes over it. The direction of shot is

Moderate

Solution

$H_{max} = 100 m, R_{max .} = 2 \times 200 = 400 m$
$∴ \tan θ = \frac{4 \times 100}{400} = 1 [∵ \frac{H}{R} = \frac{\tan θ}{4}] or θ = 45^{\circ}$

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