The velocity versus time curve of a moving point is as given below. The maximum acceleration is
Answer & explanation
Correct answer: option 4
The correct answer is Option (4) → $4 cm/s^2$
The maximum acceleration will occur in the duration 30s to 40s. So
$a=\frac{v_2-v_1}{t_2-t_1}=\frac{60-20}{40-30}=4 cm/s^2$