Question

Acceleration versus time graph for four objects are shown below. All axes have the same scale. Which object had the greatest change in velocity during the interval ?
A. .
B. .
C. .
D. .

Answer 1

Correct Answer - D
In option (b) area of graph is `(1)/(2) t_0 a_0`. But in options (a) and ( c) area is less than `(1)/(2) t_0 a_0`. In option (d), area is more than `(1)/(2) t_0 a_0`. So in option (d) change in velocity is greatest.