Read · 1 min

How fast? Velocities can vary over many orders of magnitude. For example:

Grass growing: 0.0000001 meters per second

Human sprinter: 10 meters per second

Speed of light: 300,000,000 meters per second

Type a concept, like “slope” or “photosynthesis”.

↑ ↓ to choose · Enter to openSearch explanations and problems