The velocity of a particle is zero at t = 0.Choose the correct option
(a) the acceleration may be zero at = 0
(b) the acceleration must be zero at = 0
(c) if the acceleration is zero from t = 0 to t = 2s, the speed is also zero in this interval.
(d) if the speed is zero from t = 0 to t = 2s, the acceleration is also zero in this interval.

a, c, d

The correct answer is Option (3) → a, c, d

If velocity is zero, the acceleration need not be zero. If initial velocity is zero and acceleration is also zero in interval 0 – 2s, then speed must be zero in this interval.