[单选题]
A bicycle wheel rotates unifoe*,nix z d94imwka f.lr*c:t/rmly through 2.0 revolutionsu)5;+gmk6.mn vo)0x kc kjncn in 4.0 s. What is the averag5+ .jmnxc;0uv on 6)kk c)gknme angular speed of the wheel?
A. 0.79 rad/s
B. 1.6 rad/s
C. 3.1 rad/s
D. 6.3 rad/s
Post time 2024-1-22 02:51:16