Have you ever wondered how fast rain is moving when it hits the ground?

This question become important in photographing rain and choosing a shutter speed. In this image the drops are 3-4 cm and at 1/100 of a second that making that 3-4 m/s. I guess that makes it ‘light’ rain.

Photo: Robert Rath, ‘Day 555, Rain’ 1/100s f/10 ISO320 200mm