The typical speed of a falling raindrop depends on the size of the drop. Gravity pulls everything downward. As an object falls, it experiences a frictional drag that counters the downward force of gravity. ... The terminal velocity depends on the size, shape and mass of the raindrop and the density of the air.

Why do raindrops fall under gravity?

When a rain drop falls under gravity throght a viscous medium (say air) a viscous drag acts on it in a direction opposite to that of motion. ... At this stage, there is no net force to ac celerate rain drop. Hence the rain drop starts moving with uniform velocity . This velocity is called `terminal velocity'.

What is the motion of falling raindrops?

Therefore the motion of a freely falling body is a non-uniform motion. Whereas, when the raindrops fall with increasing speed due to gravity, then the speed up viscous force due to air also get increased.