PHYSICS · Single correct · AP · Physics 1: Algebra-based · Torque and Rotational Dynamics · Torque and Rotational Dynamics
Problem
A flywheel is spinning at 30 rad s⁻¹. It is first accelerated at 5 rad s⁻² for 4 s and then immediately decelerated at 4 rad s⁻² until it stops. Determine the total time elapsed from the start of acceleration to the moment it comes to rest.
(a) 14.5s
(b) 16.5s
(c) 11.5s
(d) 20.5s