A flywheel starts from rest and rotates at a constant acceleration of (2 rad s ⁻² ). The number of revolutions that it makes in first (10 ~s ) is

Step-by-step solution

Initial angular velocity of flywheel, ( ₀=0 ) Angular acceleration, ( =2 rad / s ^2 ) Angular displacement in (t=10 ~s ) is given as ( aligned & = ₀ t+ 1 2 t^2 & =0 10+ 1 2 2 10^2 & =100 rad aligned ) ( aligned Number of revolution & = 2 = 100 2 = 100 2 22 7 & = 700 44 =15.9 16 aligned )