A Series wheel has a radius of 42m above the ground. It rotates once every 80 s. Suppose you get in the bottom at t=0. Write an equation for your height as a function of elapsed time.
A. H=42 cos π(t-40)/80+43
B. H=43 cos π(t-40)/80+43
C. H=42 cos2π(t-40)/80+43
D. H=43 cos π(t-40)/80+42