A motorcycle has a constant acceleration of 4.06 m/s2. Both the velocity and acceleration of the motorcycle point in the same direction. How much time is required for the motorcycle to change its speed from (a) 39.4 to 49.4 m/s, and (b) 69.4 to 79.4 m/s?

Answer 1

a. V = Vo + at.
t = (V-Vo)/a = (49.4-39.4)/4.06 =

Answer 2

2.463