A Circular Hula Hoop Rolls Upright Without Slipping on a Flat

question 36

Multiple Choice

A circular hula hoop rolls upright without slipping on a flat horizontal surface. Which one of the following statements is necessarily true?

• A)All points on the rim of the hoop have the same speed.
• B)All points on the rim of the hoop have the same velocity.
• C)Every point on the rim of the wheel has a different velocity.
• D)All points on the rim of the hoop have acceleration vectors that are tangent to the hoop.
• E)All points on the rim of the hoop have acceleration vectors that point toward the center of the hoop.

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