Question

A disc is rotated with constant velocity. Sand is poured over it uniformly. How is its angular velocity affected?

Answer 1

In the event that the sand is poured on the sides of the plate then it will have a flimsy movement and furthermore, its moment of inertia will increase and hence expanding the angular force.

Now, if the sand is poured just in the middle at that point there will be less loss of active vitality as the torque delivered by the falling and will be near the center and in this manner diminishing the loss of energy.

The angular velocity of an object is the object's angular relocation concerning time. The precise speed, represented by w, is the rate of progress of this angle with respect to time.