Question

the top sprinter in the world can reach a terminal speed of 50km/h, in 20m. Assuming the acceleration to be constant, compute the acceleration such an individual experiences, and compare it (in percentage form) to the acceleration of gravity.

Answer 1

V = 50,000m/3600s = 13.9 m/s.
t = 20min ? = 1200 s.

a = (V-Vo)/t =
Vo = 0.

a/g * 100% =

Answer 2

1.15%

Answer 3

ITS 20 METRES NOT MINUTES M=METRES NOT MINUTES MIN=MINUTES
I GOT AN EXAM QUESTION WRONG BECAUSE OF YOU !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! IT IS METRES