A wheel is rotated about a horizontal axle at a constant angular speed. Next it

Question

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. How would the direction of the angular velocity vectors compare? A. They are both perpendicular to the wheel's circular face and in the same direction B. They are both perpendicular to the wheel's circular face and in opposite directions. C. They are both parallel to the wheel's circular face and in the same direction. D. They are both tangential to the wheel and in the same direction.

Explanation / Answer

B. They are both perpendicular to the wheel's circular face and in opposite directions.

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