Editor
A bicycle wheel of radius 0.70 m is turning at an angular speed of 6.3 rad/s as it rolls on a horizontal surface without slipping. What is the linear speed of the wheel?
Difficulty: Easy
A: 
0.11 m/s
B: 
1.4 m/s
C: 
4.4 m/s
D: 
9.1 m/s
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