|Class 9 Physics Motion||Uniform & Non-Uniform Motion|
Uniform & Non-Uniform Motion
Note: The time interval in this motion should be small.
Example- Motion of planets around Sun, they revolve at a constant speed. So the distance travelled in every equal time period is equal
Example- Atheltes running, they are slow initally in their race but as the race preogresses their speed increases. Let us say they cover 1 km in the first hour , and after 1 hour they cover 3 km, so the distance covered in 1 hour is changing .
Note: If rate of change of any quantity with time is constant, it is said to be Uniform.