The missile at P takes off at rest and rises vertically to Q in 10 s. It stops there because of some technical problems. If by some means, the missile is suddenly pointed 45 degrees and allowed to travel in free flight, determine the maximum height attained. a. 3790 m 

Let R be the maximum
height the missile reaches h_{Q} = (1/2)a t^{2} = 1280 m v_{Q} = a t = 320 m/s as the missile starts from rest v_{Qy} = 320
sin 45 = 226.27 m/s h_{R} = h_{Q} + s = 3890 m The maximum height
attained by the missile is 