Problem 1 - Entrance Test

A car accelerates from rest to 20 m/s in 5 seconds. What is its acceleration?

A. 2 m/s²B. 4 m/s²C. 10 m/s²D. 25 m/s²

Correct: B

Acceleration is the change in velocity divided by the time taken. Here, acceleration = (20 m/s - 0 m/s) / 5 s = 4 m/s².