Two canons installed at the top of a cliff 10 m high fire a shot each with speed 5 √ √ 3 ms -1 at some interval. One canon fires at 60° with horizontal whereas the second fires horizontally. The coordinates of point of collision of shots are
Text Solution
Verified by ExpertsThe correct answer is:
D
Let t 1 and t 2 be the times of shot from cannot at 60 o and the slot from horizontal cannot to reach the point of collision.
∴ ∴ x = (5 √ √ 3 cos 60)t 1 = 5 √ √ 3 t 2
and y = 10 + 5 √ √ 3 sin 60t 1 – 1/2 gt 1 2
= 10 – 1/2 gt 2 2
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