A Wheel Is Rotated About a Horizontal Axle at a Constant

question 40

Multiple Choice

A wheel is rotated about a horizontal axle at a constant angular speed.Next it is rotated in the opposite direction with the same angular speed.The acceleration at a point on the top of the wheel in the second case as compared to the acceleration in the first case:

• A)is in the same direction.
• B)is in the opposite direction.
• C)is upward.
• D)is tangential to the wheel.

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