A wheel starts rotating from rest at time t = 0 with a angular acceleration of 50 radians/s2. The angular acceleration α decreases to zero value after 5 seconds. During this interval, α varies according to the equation
α = α0(1 - t/5)
The angular velocity at t = 5 s will be
(a) 10 rad/s
(b) 250 rad/s
(c) 125 rad/s
(d) 100 rad/s
