7318252
Jun 14, 2013, 01:51 AM
A projectile's launch speed is5X speed at maximum height.Find launch angle 0.
tsgkl911
Jun 14, 2013, 05:05 AM
At maximum height there is only horizontal component of velocity.i.e.vcos0 if o is the angle made with horizontal... try to use this info... is the answer 78.46 degrees?