Here's why:
* Speed is a measure of how fast an object is moving. It's calculated by dividing the distance traveled by the time taken.
* Mass is a measure of the amount of matter in an object. It doesn't tell you anything about how fast the object is moving.
* Distance tells you how far an object has traveled. It doesn't tell you how long it took to travel that distance.
To calculate speed, you need both distance and time.
Here's the formula:
Speed = Distance / Time
Example:
If an object travels 10 meters in 2 seconds, its speed is:
Speed = 10 meters / 2 seconds = 5 meters per second
