Question

A wheel rotates without friction about a stationary horizontal axis at the center of the wheel. A constant tangential force equal to 89.0N is applied to the rim of the wheel. The wheel has radius 0.100m . Starting from rest, the wheel has an angular speed of 12.2rev/s after 3.35s .

A
What is the moment of inertia of the wheel?
Express your answer with the appropriate units.

Answer 1

Find alpha from ωf=ωi+αt
once you have it you can use: τ=Fr=89.0∗.1=Iα
to find I