Speed

Speed is a measure of how fast an object is moving. It is a scalar quantity, meaning it only has magnitude and not direction. The formula to calculate speed is:

Speed = Distance / Time

where Distance is the total path covered by the object and Time is the duration of the movement. The SI unit for speed is meters per second (m/s).

Types of Speed

There are different types of speed:

• Instantaneous Speed: The speed of an object at a particular moment in time.
• Constant Speed: When an object covers equal distances in equal intervals of time.
• Variable Speed: When an object covers unequal distances in equal intervals of time.

Study Guide

Here are some key points to remember about speed:

1. Speed is a measure of how fast an object is moving.
2. It is calculated as the ratio of distance to time.
3. Speed can be instantaneous, constant, or variable.
4. The SI unit for speed is meters per second (m/s).
5. It is important to distinguish between speed and velocity, as velocity includes direction.

Understanding the concept of speed is crucial in the study of motion and is applicable in various fields such as physics, engineering, and sports.

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