The angular velocity of a particle is given by ω = 1.5 t -3t2 + 2 the time when its angular acceleration ceases … . 25 sec (c) 12…
Answers:
Correct Option (b) 0. 25 sec
Explanation:
ω = 1.5t – 3t2 + 2 and α = d ω/dt
= 1.5 t – 6t ⇒ 0 = 1.5 – 6t
∴ t = 1.5/6 = 0.25 sec