Mini-Quiz: Center of Mass Motion Components

1. What is the relationship between the radial and tangential velocity components?

   The radial component is always largerGood try, but not right. Select another answer. The components are perpendicular to each otherCorrect. You know about the center of mass. The components have no real relationshipSorry, not correct. Try another button.

2. In which direction do the objects move on the axis between them as viewed from the CM?

   Toward each other or away from each otherThat is Correct. You are quite smart. Objects only move toward each other because of gravitationOops! Wrong answer. Re-read the question and try again. It depends on the magnitude of the tangential velocitySorry, not correct. Try another button.

3. What is necessary for objects to orbit the CM?

   Their tangential velocities must be sufficient for orbits to occurCorrect. You know about the center of mass. The objects must have the same massGood try, but not right. Select another answer. Two objects always orbit their CMOops! Wrong answer. Re-read the question and try again.

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