Question

After a good meal at a party you wash your hands and find that you have forgotten to bring your handkerchief. You shake your hands vigorously to remove the water as much as you can. Why is water removed in this process ?

Answer 1

Shaking the hand gives acceleration to he hand and to remain the water particles attached to hand require a resultant force in the direction of acceleration. The force of the adhesion between the water particles and the hand is not sufficient to transfer the force applied by hand to the particle. So due to inertial force water is removed.