Question

In the following graph, what is the acceleration at t =1s?

• A. 0
• B. 2
• C. 2.5
• D. 10

Answer 1

The correct option is D

10

Acceleration is constant between 0 to 2s (straight line) and it is equal to the slope of the line.

Slope of the line = $\frac{20-0}{2-0}$

= 10

Hence acceleration at t=1s is 10 $m/s^2$.