Question

The initial angular velocity and the angular acceleration of four rotating objects at the same instant in time are listed in the table that follows. For each of the objects (a), (b), (c), and (d), determine the final angular speed after an elapsed time of 2.2 s.

	Initial angular velocity ω0	Angular acceleration α
(a)	+15 rad/s	+5.0 rad/s2
(b)	+15 rad/s	-5.0 rad/s2
(c)	-15 rad/s	+5.0 rad/s2
(d)	-15 rad/s	-5.0 rad/s2

(a)	Final angular speed =		---Select--- rad rad/s^2 rad/s s
(b)	Final angular speed =		---Select--- rad/s^2 s rad rad/s
(c)	Final angular speed =		---Select--- rad/s^2 rad/s rad s
(d)	Final angular speed =		---Select--- s rad/s rad rad/s^2

Answer 1