Question

A projectile can have same range R for two angles of projection if T1 andT2be the time of flight in two cases then product of the two times of flight is directly proportional to (a)1/Rsquare (b)1/R (c)R (d)Rsquare

Answer 1

T1*T2 = sin()*cos()*u^2/g^2
R = 2sin()*cos()*u^2/g^2
so option c
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