A small sphere attached to a light rigid rod rotates about an axis perpendicular

Question

A small sphere attached to a light rigid rod rotates about an axis perpendicular to and fixed to the other end of the rod. Relative to the positive direction (counter clockwise) of the axis of rotation, the angular positions of the sphere are positive, its angular velocity is positive, and its angular acceleration is negative. The sphere is 6. a) rotating clockwise and slowing down. b) rotating counterclockwise and slowing down. c) rotating clockwise and speeding up. d) rotating counterclockwise and speeding up. e) first rotating clockwise and then counterclockwise.

Explanation / Answer

Answer : Option (b) is correct answer. Rotating counterclockwise and slowing down.

Since rotating from the x-axis to y-axis counterclockwise,.is consider positive rotation.The angular acceleration is negative so the sphere is slowing down.

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