Speed
🔷 Speed
🌟 Introduction
Ever wondered why cheetahs are called the fastest land animals? Or how fast your internet connection really is? Speed is all around us — from the speed of light to the speed of a snail! Let’s explore this fascinating concept that helps us measure how fast things move! 🐆📶
📸 Cheetah – Nature’s Speedster
📚 Key Concepts
🔹 What is Speed?
Definition: Speed is the distance travelled by an object per unit time.
Speed tells us how fast or slow an object is moving. It’s always positive and depends only on the distance covered, not the direction.
🔹 Types of Speed
- Instantaneous Speed: Speed at a particular instant of time
- Average Speed: Total distance travelled divided by total time taken
- Uniform Speed: When an object covers equal distances in equal intervals of time
📌 Real-life Example: Your car’s speedometer shows instantaneous speed, while your GPS calculates average speed for your entire journey!
🔹 Units of Speed
- SI Unit: meters per second (m/s)
- Common Units: km/h, mph, cm/s
- Conversion: 1 m/s = 3.6 km/h
🧠 Important Formulas
- Speed = Distance / Time
- Average Speed = Total Distance / Total Time
- Distance = Speed × Time
- Time = Distance / Speed