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An ant, a beetle, a cricket, and a flea are located at the centers of the differ

ID: 1912466 • Letter: A

Question

An ant, a beetle, a cricket, and a flea are located at the centers of the different quadrants of a turntable which is rotating at an unknown and changing rate. Each is walking at constant speed toward the center of the turntable. A free-body diagram for one of the insects, as analyzed in the turntable frame, is shown. (Note: In a free-body diagram, sizes are not necessarily to scale, especially since generally some of them are not yet known.) Which insect does the free-body diagram correspond to? Justify your choice. Which direction is the turntable's angular velocity vector? Justify your choice. Which direction is the turntable's angular acceleration vector? Justify your choice.

Explanation / Answer

It corresponds to cricket Both angular velocity and angular acceleration are directed upward