Which of the following types of units is based on the metric system in the united states? the mile the ounce the dollar the pound

Awheel rotates without friction about a stationary horizontal axis at the center of the wheel. a constant tangential force equal to 82.0 n is applied to the rim of the wheel. the wheel has radius 0.150 m . starting from rest, the wheel has an angular speed of 12.8 rev/s after 3.88 s. what is the moment of inertia of the wheel?

Can anybody me with this? ? (picture included.)

The ozone hole appears in antarctica during