12. Rotational Kinematics
Types of Acceleration in Rotation
Multiple Choice
Multiple ChoiceA certain carnival ride is spinning, and smoothly changes its motion from clockwise to counterclockwise, stopping only for an instant in the middle. In this instant, which of the following is correct?
A
The radial acceleration is zero, and the tangential acceleration is also zero.
B
The radial acceleration is nonzero, but the tangential acceleration is zero.
C
The radial acceleration is nonzero, and the tangential acceleration is also nonzero.
D
The angular acceleration is zero, and the tangential acceleration is also zero.
E
The angular acceleration is zero, but the tangential acceleration is nonzero.
F
The radial acceleration is zero, but the tangential acceleration is nonzero.
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