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How to Calculate Impulse Using Newton's Second Law | Two Different Approaches Explained in Detail

In this video, I take you through the step-by-step process of calculating impulse using Newton’s Second Law of Motion. This is an important concept in physics, especially in mechanics, and it plays a crucial role in understanding motion, collisions, and forces. Whether you are preparing for WAEC, JAMB, Post-UTME, or just want to strengthen your understanding of physics, this video is for you! What is Newton’s Second Law? Newton’s Second Law of Motion states that the force acting on an object is equal to the rate of change of its momentum. Mathematically, this is expressed as: F = (mv - mu) / t where: 🔹 F = Force (measured in Newtons, N) 🔹 m = Mass of the object (kg) 🔹 u = Initial velocity (m/s) 🔹 v = Final velocity (m/s) 🔹 t = Time interval (s) This law helps us understand how objects accelerate when a force is applied and how their motion changes over time. What is Impulse? Impulse is the effect of a force acting over a period of time. It is given by the formula: Impulse = Change in Momentum = mv - mu where: 🔹 Impulse is measured in Newton-seconds (Ns) 🔹 mv is the final momentum 🔹 mu is the initial momentum Impulse explains how an object’s motion changes when a force is applied for a certain duration. It is commonly seen in sports, vehicle collisions, and rocket launches. Problem Breakdown & Solution In this video, I solve a problem where the initial momentum, final momentum, and time are given. I use two different approaches to determine the impulse and explain which method is more convenient in different situations. ✅ First Approach: I start by applying Newton’s Second Law, calculating the force first using F = (mv - mu) / t. Once the force is known, I then use the impulse formula Impulse = Force × Time to find the impulse. ✅ Second Approach: Here, I use the direct formula for impulse: Impulse = Change in Momentum (mv - mu). This method is faster and gives the same result but with fewer steps. Both methods are valid, and by watching this video, you will learn when to apply each approach. Why You Should Watch This Video Till the End: ✔️ Detailed explanation of Newton’s Second Law and impulse ✔️ Step-by-step calculation using two different methods ✔️ Easy-to-understand breakdown in simple language ✔️ Perfect for students preparing for WAEC, JAMB, and Post-UTME ✔️ Real-life applications of impulse and momentum ✔️ Pidgin English explanation makes learning fun and relatable This tutorial is designed to help you understand the concepts easily so that you can apply them in any physics problem. If you find this video helpful, please LIKE, SUBSCRIBE, and SHARE with your friends so they can also benefit. Your support helps me create more educational content. Drop your questions in the comments, and I will respond as soon as possible! Turn on notifications so you don’t miss my future videos on physics, math, and science topics. More tutorials are coming soon! #NewtonSecondLaw #Impulse #PhysicsTutorial #Momentum #Force #PhysicsForBeginners #WAECPhysics #JAMBPhysics #PhysicsMadeEasy #PidginEnglishTutor #ScienceEducation #PhysicsLover #SS3Physics #PhysicsCalculations #PostUTMEPhysics #PhysicsLessons #ExamPreparation #LearnPhysics #STEMEducation #NigeriaEducation #PhysicsMadeSimple #WAECPrep #JAMBPrep