A hoop of mass M and radius R is rotating about an axle at the edge of the hoop. The hoop starts at its highest position and is given a very small push to start it rotating.
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Step 1
First, we need to determine the moment of inertia (I) of the hoop. Since the hoop is rotating about an axis at its edge, we can use the following formula for the moment of inertia of a hoop: I = MR^2 Show more…
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A hoop of mass $M$ and radius $R$ rotates about an axle at the edge of the hoop. The hoop starts at its highest position and is given a very small push to start it rotating. At its lowest position, what are (a) the angular velocity and (b) the speed of the lowest point on the hoop?
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