Question

A projectile is aimed to hit a mark on the horizontal plane through the point of

projection and falls 9 m before the point of mark with an angle of 20º with the

horizontal. It overtakes the mark by 5 m when the angle is 50º, with the same velocity.

Find the angle of projection to hit the mark using the same velocity. Assume no air

resistance.​

Answer 1

Explanation:

In the given fig angle abc is equal to 90 degree Bd perpendicular to ac .ab is equal to 12cm ,bc is equal to 9cm ca is equal to 15cm then the length of ad is

a 3.6

b 6.3

c 6.6

d 9.6

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