A flywheel has a constant angular deceleration of 2.0 ra/*^2. (a) Find the angle through which the flywheel turns as it somes

Question

A flywheel has a constant angular deceleration of 2.0 ra/s2. (a) Find the angle through which the flywheel turns as it somes to rest from an angular speed of 220 rad/s2. (b) Find the time required for the flywheel to come to rest.

Answer 1

(a) The problem tells us that if we take the angular velocities as positive, then we have α = −2.0 rad s2 . Then if the initial angular velocity is ω0 = 220 rad/* and it comes to rest (ω = 0) as it turns through an angle θ, the relation between these quantities is given by

(b) To find the time it takes the flywheel to come to rest, use