[单选题]
17.18: A disk of radcqla95 .*** xms h 3xf5wxanbeius 75.0 cm makes 3.5 revolutions when coming to restjw ei.,ur4,c dkh6 2es in 2.50 s. What was the ini4erhc26uj e ikw,ds.,tial 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
