Speed
Speed is a measure of how fast an object is moving
Speed is a measure of how fast an object is moving. It is commonly defined as the distance traveled per unit of time. The formula to calculate speed is:
Speed = Distance / Time
where distance is the total path traveled by an object and time is the duration taken to cover that distance.
Speed can be expressed in various units such as meters per second (m/s), miles per hour (mph), or kilometers per hour (km/h). The choice of unit depends on the situation and the common practices of the region.
To better understand speed, let’s consider an example:
Suppose a car travels a distance of 300 kilometers in 5 hours. To find the speed, we use the formula:
Speed = Distance / Time
Speed = 300 km / 5 hours
Speed = 60 km/h
Therefore, the speed of the car is 60 kilometers per hour.
It’s important to note that speed is a scalar quantity, meaning it only has magnitude (value) and no direction. It does not specify the direction of motion. If we also want to consider the direction, we would need to use velocity, which is a vector quantity.
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