A Potter's Wheel (A Solid,uniform Disk)of Mass 7

Multiple Choice

A potter's wheel (a solid,uniform disk) of mass 7.0 kg and radius 0.65 m spins about its central axis.A 2.1 kg lump of clay is dropped onto the wheel at a distance 0.41 m from the axis.Calculate the rotational inertia of the system.

A) 1.8 kg ∙ m²
B) 1.5 kg ∙ m²
C) 0.40 kg ∙ m²
D) 2.5 kg ∙ m²