Question

Superman is flying at an initial velocity of 33.5 m/s [N] when he decides to slow to 10.0 m/s [N] in a time of 8.05 s. He then continues at this velocity for 12.4 s before accelerating at 2.35 m/s^2 [N] until he reaches a final velocity of 23.8 m/s [N].

a) Calculate Superman’s displacement in this time.
b) Calculate Superman’s average velocity for his entire flight.

Answer 1

honestly, the simple way to solve this is to plot a velocity vs time graph, then compute the area under it, that area is equal to displacement. Average velocity is displacement divided by time. Once you master that, you will understand how to do piecemeal formulas to do the same.