Question

34. Find the velocity of projection and angle of projection of a missile
which has a horizontal range of 150m, if the time of flight for that
range is 3 second (g=10ms 2).​

Answer 1

Is my answer correct?

Please recheck and if me answer is wrong I will surely remove it.

U=5√409

Answer 2

First we have to find horizontal and vertical components of velocity and then to find theta.

Then substitute theta in any one of the equations to get velocity of projection.

thank you