Question

Will force of friction come into play when a raindrop rolls down a glass window pane?

Answer 1

Friction

1. It is a force that resists the relative motion of solid surfaces, fluid layers, and material elements sliding against each other.

What causes more friction.

1. Friction is caused due to irregularities of the two surfaces in contact.
2. More rough surface leads to more irregularities, hence more friction.

Force of friction between raindrop and glass window.

1. The surface of a glass window is smooth and there are fewer irregularities in a raindrop.

Final Answer: The force of friction will be there in between the glass window and the raindrop however the glass window is smooth so the force of friction would be weak here.