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# Rotational Motion of a Mass

APPH12-HF9KAU

A device provides a steady 15.0 Newton force to a 100. gram mass on the end of a 75.0-centimeter rod that can be considered massless. The pivot point is the left side of the rod. The device spins for one minute.

Which of the following statements are most consistent with the data?

A

The final angular velocity of the 100-gram mass after one minute is $12,000\text{ }\frac { rad }{ s }$.

B

The torque acting on the 100-gram mass is $1125\text{ m∙N}$.

C

The change in angular momentum of the 100-gram mass after one minute is $900\text{ }kg\frac { { m }^{ 2 } }{ s }$.

D

The tangential acceleration of the 100-gram mass is $150\text{ }\frac { m }{ { s }^{ 2 } }$.