Question

give reason liquids set in rotation comes to rest after sometime​

Answer 1

Reason is Viscosity.

Explanation :

When water in a container or glass tumbler is set into rotation by glass rod , the rotation starts from  co-axial cylindrical layers.

On stopping the rotation by glass rod, the speed of different layers are seen decreasing and liquid finally comes to rest.Which shows that the liquid experiences a internal friction.

Hence Viscosity is the property of fluids by virtue of which an internal resistance or drag[fluid friction ] comes into play when liquid is in motion . The internal friction tries to stop the motion of liquid.

Answer 2

hey dear♡♡♡

the reason is liquids set in rotation comes to rest after sometime due to viscosity..

nd ya It comes to rest because the liquid that is stirred loses its kinetic (movement) energy by means of friction with the bucket and itself (also air, it's effect is really small though).

The kinetic energy will be transformed to heat and thus, both liquid and bucket will heat up. This change in temperature is so low that you won't really notice it in your day to day life.

hope it help dear☺☺