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Understanding Resultant and equilibrant

Understanding Resultant and Equilibrant Forces | Mechanics Description: In this video, we explore Resultant and Equilibrant Forces in mechanics — one of the most fundamental topics in physics and engineering mechanics. You’ll learn how multiple forces combine into a single resultant force, how to find the equilibrant force that balances it, and how these concepts apply to force systems, friction, and equilibrium. Perfect for WAEC, NECO, UTME, IGCSE, and engineering students, this lesson breaks down coplanar, concurrent, and parallel force systems, with clear explanations, examples, and a quiz to test your understanding. ⏱ Timestamps & Chapters 00:00:01 - Introduction to Resultant and Equilibrant Forces Learn the meaning and significance of resultant and equilibrant forces in mechanics and how they relate to equilibrium conditions. 00:02:01 - Difference Between Resultant and Equilibrant Forces Understand the relationship between these two forces and how they maintain stability in a system. 00:04:00 - Force Systems: Coplanar and Concurrent Introduction to force systems — coplanar, parallel, non-parallel, and concurrent forces. 00:06:38 - Parallel and Non-Parallel Coplanar Force Systems Explanation of forces acting on the same plane, including parallel and intersecting lines of action. 00:09:21 - Concurrent Force Systems and Resultant Force Learn how to replace multiple concurrent forces with a single resultant force and how equilibrium is achieved. 00:12:31 - Forces on a Horizontal Plane & Reaction Force Understand weight, reaction force, and Newton’s third law of motion in practical examples. 00:15:00 - Frictional Force and Static Friction Explained Detailed explanation of friction, limiting friction, and how to calculate static friction using the coefficient of friction. 00:19:40 - Calculating Resultant Force and Force Addition Rules Rules for adding and subtracting forces acting in the same or opposite directions. 00:23:36 - Summary of Resultant Forces and Friction Formulas Recap of important formulas like 𝐹=𝑚𝑎 F=ma, 𝑊=𝑚𝑔 W=mg, and 𝐹𝑓=𝜇𝑅 Ff=μR. 00:26:44 - Example Problem: Calculating Friction and Resultant Force Step-by-step worked example combining friction, reaction force, and resultant force calculations. 00:31:45 - Quiz: Resultant, Equilibrant, and Acceleration Test your understanding with a quiz on finding resultant and equilibrant forces and acceleration. 📘 Key Concepts Covered Resultant and Equilibrant Forces Coplanar, Concurrent, and Parallel Force Systems Friction and Coefficient of Friction Normal Reaction and Weight Newton’s Laws of Motion Force Addition and Resolution Static and Limiting Friction Equilibrium of Forces #igcse2026 #physics #mechanics #vector ector #resolutionofforces #equilibrant #parallelogramlaw #equilibrium #physicsmadeeasy #utme #jambphysics #physicslesson #physicstutorial #learnphysics #physicsmadeeasy #mechanicalengineering