Speed is a scalar quantity that describes how fast an object is moving.
Here’s a breakdown:
- Definition: Speed is the rate at which an object covers distance.
- Calculation: Speed is calculated by dividing the distance traveled by the time taken to travel that distance.
- Formula: Speed = Distance / Time
- Units: Common units of speed include:
- Meters per second (m/s)
- Kilometers per hour (km/h)
- Miles per hour (mph)
Key Points:
- Scalar Quantity: Speed only considers the magnitude of the motion, not the direction.
- Average Speed: This is the total distance traveled divided by the total time taken. It doesn’t account for any variations in speed during the journey.
- Instantaneous Speed: This is the speed of an object at a specific moment in time.