1.

A ball is projected at an angle of 30° and 60° to thehorizontal with the same initial velocity in each case.Ratio of their times of flight is32.(3) 1: V3(4) 2: V3

Answer»

time of flight is directly proportional to sinthetahenceT1/t2=sintheta1/sintheta2=sin30/cos60=1/2/1/2=1:1



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