Question

a projectile can have same range R for two angles of projection at a given speed. if T1 and T2 be the time of flight in two cases then find relation between them​

Answer 1

If 'a' is one angle and 'b' is another ...

then cos(a) x T1 = cos(b) x T2

or       sin(a) x T2 = sin(b) x T1

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