[单选题]
17.18: A disk of radius 75.wfjslg;0)98h:)m *gqgf wu1u 4j nsv f0 cm makes 3.5 revolutions when comingm.q+md4ks vg; x 7uts) to rest in 2.50 s. What was thmtmx+ ; g)u7vkss4 qd.e initial angular speed of the disk?
A. 1.40 rad/s
B. 6.60 rad/s
C. 8.80 rad/s
D. 13.2 rad/s
E. 17.6 rad/s
