15. Rotational Equilibrium
Torque & Equilibrium
Multiple Choice
Multiple ChoiceA composite disc is made out of two concentric cylinders, as shown. The inner cylinder has radius 30 cm. The outer cylinder has radius 50 cm. If you pull on a light rope attached to the edge of the outer cylinder (shown left) with 100 N, how hard must you pull on a light rope attached to the edge of the inner cylinder (shown right) so the disc does not spin?
A
300 N
B
667 N
C
60 N
D
167 N
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