Question

At the beginning of the 100 meter dash, a runner accelerates at a rate of 5 m/s 2 until he reaches his maximum speed of 10 m/s . How long does it take him to reach his maximum speed?

Answer 1

Answer:

V = a * t         for uniform values

t = V / a = 10 m/s / (5 m/s^2) = 2 sec