Formula for Speed
The speed formula can be defined as the rate at which an object covers some distance. Speed can be measured as the distance traveled by a body in a given period of time. The SI unit of speed is m/s. In this section, we will learn more about the speed formula and its applications.
What is the Formula for Speed?
Let's move further and explore more about the speed formula in this section. The formula for the speed of a given body can be expressed as,
Speed = Distance/Time
Let's take a quick look at an example of formula for speed.
Example: What is your speed if you travel 3600 m in 30 minutes?
Solution: Using Formula for Speed,
Speed = Distance/Time=3600/(30×60) = 2
Answer: Your speed if you travel 3600m in 30 minutes is 2 m/s.

Example 1: A train covered a distance of 120 km in an hour. What is the speed of the train?
Solution: To find: The speed of the train.
The distance covered by a train in meters = 120×1000m = 120000m
Time taken by train in seconds = 60×60 = 3600 second
Using Formula for Speed,
Speed = Distance/Time = 120000/3600 = 33.3m/sec
Answer: The speed of the train is 33.3 m/s.

Example 2: A cyclist covers 20 km in 50 minutes. Use the speed formula to calculate the speed of the cyclist?
Solution: To find: The speed of a cyclist.
The distance covered by a cyclist in meters = 20×1000 =20000m
Time taken by cyclist in seconds = 50×60= 3000 secondUsing formula for speed,
Speed = Distance/Time = 20000/3000 = 6.66m/sec
Answer: The speed of the cyclist is 6.66 m/s.