Table of Contents
Table of Contents
- Uniform Motion – Definition
- Non Uniform Motion – Definition
– Average Speed
– Instantaneous Speed
- Summary
- Did You Know?
- What’s Next?
In the previous segment, we learned about Distance and Displacement. In this segment, we will learn about Uniform motion and Non-uniform motion.
What is Uniform motion?
A motion at a constant speed is called Uniform motion.
For uniform motion, if the constant distance covered for each time period and the total time duration of motion are known, then we can calculate the total distance covered.
????? ???????? ???????
= ???????? ???????? ??????? (??? ???ℎ ???? ??????) × ????? ???? ????????
Consider an example of uniform motion – A man is running at a constant speed of 3 m/s and runs for 1 minute = 60 s.
From this we can calculate the total distance covered by the man –
????? ???????? ??????? = 3 ?/? × 60 ? = 180 ?
Speed – Distance travelled by an object in unit time is called Speed.
????????
????? = ???? ????
The SI unit of speed is metres per second (m/s). Speed can also be denoted in centimetres per second (cm/s), miles per hour (mi/h) or kilometres per hour (km/h).
What is Non-uniform motion?
When the motion of an object is not at a constant speed, it is called Non-Uniform motion.