Multiple Choice
A 0.18 m radius pulley is free to rotate about a horizontal axis.A 4.2 kg mass and a 8.0 kg mass are attached by a massless string,which is hung over the pulley.If the string does not slip,calculate the magnitude of the net torque on the pulley about its rotational axis.
A) 6.7 N ∙ m
B) 5.5 N ∙ m
C) 7.6 N ∙ m
D) 9.5 N ∙ m
Correct Answer:

Verified
Correct Answer:
Verified
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