Multiple Choice
A disk with a rotational inertia of 5.0 kg .m2 and a radius of 0.25 m rotates on a fixed axis perpendicular to the disk and through its center. A force of 2.0 N is applied tangentially to the rim. As the disk turns through half a revolution the work done by the force is:
A) 1.6 J
B) 2.5 J
C) 6.3 J
D) 10 J
E) 40 J
Correct Answer:

Verified
Correct Answer:
Verified
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