Question

The time it takes a car to attain a speed of 30 m/s when accelerating from rest at 2 m/s2 is?

Answer 1

Explanation:

u = 0m/s

v = 30m/s

a = 2m/s²

Using Kinematics, we have v = u + at.

Therefore t = (v - u) / a

= (30 - 0) / (2) = 15 seconds. (B)