Question

why did the rain drops move upward on the glass of a car while moving

Answer 1

Because the air that comes from the front pushes the drops backwards as the windshield is slant it moves upwards

Answer 2

Hope you understand!

As our car move, when the water is there on glass in rainy season as our car move forward the water on the glass moves backwards due to the law of inertia that was given by the newton

REGARDS!!