1. A small sphere attached to a light rigid rod rotates about an axis perpendicu

Question

1. 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 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 a) rotating clockwise and speeding up. b) rotating clockwise and slowing down c) rotating counterclockwise and speeding up d) rotating counterclockwise and slowing down. e) first rotating clockwise and then counterclockwise. ? A solid ylinder shown rotates about a fixed axis perpendicular to

Explanation / Answer

angular velocity and angular acceleration are in opposite direction.

so it will slow down.

positive direction is considered as counterclock wise direction.

Ans: (d)

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