Q4-33DQ - University Physics with Modern Physics

Question

If your hands are wet and no towel is handy, you can remove some of the excess water by shaking them. Why does this work?

Step-by-Step Solution

Answer

Water gets removed from hands when shaken due to inertia of rest.

Step 1: Given data

Water can be removed from hands by shaking them.

Step 2: Inertia of rest

A body in rest tends to be in rest unless an external force act on it.

Step 3:Reason for water dropping from hands on shaking

When hands shook, they start moving suddenly. The water on the hands don't start moving immediately due to inertia of rest. Hence the water falls off.