abj sir's mechanics in order (from Mohit Tyagi/Competishun YT channel)

Currently Playing: 9 Thrust Force & Variable Mass System | Centre of Mass Class 11 | JEE Main & Advanced

🎓 COMPLETE YOUR JEE PREPARATION WITH COMPETISHUN Watch complete JEE lectures FREE with PAARAS Batch and access Competishun Courses, Test Series, PYQs & free Study Material — all in one place. 🚀 📱 COMPETISHUN APP 👉 https://play.google.com/store/apps/details?id=xyz.penpencil.competishun 💻 STUDY ON WEB 👉 https://i.competishun.com 🌐 EXPLORE COMPETISHUN 🎯 All Courses 👉 https://competishun.com/courses/ 📝 JEE & Other Test Series 👉 https://competishun.com/test-series/ 📚 Competishun Books & Study Material 👉 https://competishun.com/buy-books/ 🎁 Free Study Resources 👉 https://competishun.com/free-resources/ 🌐 Official Website 👉 https://competishun.com ━━━━━━━━━━━━━━━━━━ 📞 ADMISSION & SUPPORT 8888-0000-21 7410-900-901 7410-900-906 7410-900-907 7410-900-908 🔔 Subscribe to the channel for complete JEE lectures, preparation strategies, exam updates and expert guidance from the Competishun faculty. --------------- Topics covered in this Chapter Centre of Mass Class 11 lecture by ABJ sir IITD with timestamp: 00:00 - 13:41 COM Problem 1: Based on the Concept of Thrust Force and variable mass system. In this problem, we have a cart of mass M on a smooth surface and according to the diagram, there is a fixed funnel filled with sand. Sand strikes the cart and sticks to it, and this collision is inelastic. The rate of striking the sand is given. So we have to draw the FBD of the Cart and sand on it, Apply Newton's Law on it. Also, could you find the velocity of the cart at any time t? To solve this problem, ABJ Sir uses the concept of thrust force and Newton's law. 1. Make FBD of the given situation. 2. Apply the Impulse Momentum Theorem. As discussed in past lectures, According to Impulse Momentum Theorem, the impulse applied to an object equals the change in its momentum. It proves that the change in momentum of an object depends not only on the amount of force applied but also on the duration of force applied. 3. Using calculus solve the integration part and find the velocity equation at any instant. 4. After Getting the equation of velocity at any instant, ABJ Sir summarises the whole concept. 13:41 - 23:04 COM Problem 2: Based on the Concept of Thrust Force and variable mass system. In this problem, we have a cart of mass M on a smooth surface and according to the diagram, there is a fixed funnel filled with sand. Sand strikes the cart and sticks to it, and this collision is inelastic. The rate of striking the sand is given. A constant force F is applied on the cart in the horizontal direction. So we have to draw the FBD of the Cart and sand on it, Apply Newton's Law on it. Also, could you find the velocity of the cart at any time t? To solve this problem, ABJ Sir uses the concept of thrust force and Newton's law. 1. Make FBD of the given situation. 2. Apply the Impulse Momentum Theorem. As discussed in past lectures, According to Impulse Momentum Theorem, the impulse applied to an object equals the change in its momentum. It proves that the change in momentum of an object depends not only on the amount of force applied but also on the duration of force applied. 3. Using calculus solve the integration part and find the velocity equation at any instant. 4. After Getting the equation of velocity at any instant, ABJ Sir summarize whole concept. Free IIT JEE coaching, Free JEE Main lectures, Best IIT JEE YouTube channel, Complete JEE syllabus free, Free online coaching for JEE, Free JEE Main and Advanced preparation, Best free lectures for JEE, IIT JEE physics, chemistry, math full syllabus, Best YouTube channel for JEE Main, Free JEE Main physics lectures, Free coaching videos for IIT aspirants, Best online content for JEE aspirants, Free JEE coaching by IITians, Complete JEE course on YouTube, Free mock tests and revision for JEE, #JEEMain #JEEAdvanced #Competishun #Physics #MohitTyagi