Question

A body starts from rest and moves with constant acceleration. If it covers a distance of $ 40 \, \text{m} $ in 4 seconds, then its acceleration is:

• A. \( 5 \, \text{m/s}^2 \)
• B. \( 2.5 \, \text{m/s}^2 \)
• C. \( 10 \, \text{m/s}^2 \)
• D. \( 4 \, \text{m/s}^2 \)

Hint:

Key Fact: For uniformly accelerated motion from rest: \( s = \frac{1}{2} a t^2 \)