A 53 kg sprinter, starting from rest, runs 55 m in 7.6 s at constant acceleration. What is the magnitude of the horizontal force acting on the sprinter?
A) What is the magnitude of the horizontal force acting on the sprinter (in N)?
B) What is the sprinter's average power output during the first 2.5 of his run (in W)?
C) What is the sprinter's average power output during the final 2.5 s (in W)?