What is the angular displacement made by a particle after 5s, when it starts from rest with an angular acceleration 0.2 and s^(-2) ?

What is the angular displacement made by a particle after 5s, when it

1.	What is the angular displacement made by a particle after 5s, when it starts from rest with an angular acceleration 0.2 and s^(-2) ?
Answer» 4rad 1 rad 2.5 rad 5 rad SOLUTION :From equation of circular motion `omega = 0` ` theta= omega t + 1/2 prop t^2` ` theta = 1/2 prop t^2 = 1/2 XX 0.2(5)^2 = 2.5 rad `