A projectile is launched from ground level at 90 m/s at an angle of 48.0 degrees above the horizontal, and it is subject only to gravity (in free fall, air resistance ignored).
a) What is the time the rocket reaches the peak height of its trajectory.
b) The horizontal range of the rocket from the launch point.
c) The max height above the ground the rocket reaches.
d) Horizontal and vertical speeds of the rocket from the top trajectory.