A rocket is launched from rest and moves in a straight line at 70.4° above the horizontal with a constant acceleration of 48.8 m/s². After 33.0 s, the engines shut off, and the rocket follows a parabolic trajectory back to the ground. What is the time of flight from launch to impact?
a. 40.5 s
b. 25.3 s
c. 29.8 s
d. 33.0 s