A drag racer starts her car from rest and accelerates at 9.0 m/s2for the entire distance of 105.0 m. What is its speed at the end of the run? Answer in units of m/s.

Answer 1

v = 9.0 t

d = (1/2) a t^2
105 = 4.5 t^2
t = 4.83 seconds

v = 9 * 4.8 = 43.4 m/s