Question

If a car at rest accelerates uniformly to a speed of 144kmh-1 in 20s, then it covers a distance of:

Answer 1

Step-by-step explanation:

144 km/hr = 40 km / s

Acceleration = change in velocity / change in time

Acceleration = 40 m/s / 20 s = 2 m/s^2

d = 1/2 a t^2 = 1/2 (2)(20^2) = 400 meters