Collar & Pulley | Solving with Newton's laws | Dynamics

Welcome to Engineering Hack! In today's video we looking into a collar and pulley system to which a constant force is applied (problem 13.20). It is the same exact problem as the previous video, but now we want to solve it using Newton's laws instead of using the conservation of energy. We are still assuming that the system is frictionless (which simplifies the solving). The tricky bit is on part b, where we actually have two distinct situations that we need to clearly separate, or else the solving won't make sense. Other than that, all we are doing is applying Newton's second law (F=ma) over and over, and once we find the acceleration, we can find the velocities and distances asked using kinematic equations. The answers are obviously the same as from last problem. After all, the question is exactly the same! Have a go before watching the video and let me know if you have any comments below! Problem statement: The system shown is at rest when a constant 150 – N force is applied to collar B. (a) If the force acts through the entire motion, determine the speed of collar B as it strikes the support at C. (b) After what distance d should the 150 N force be removed if the collar is to reach support C with zero velocity? Answer: a) VB = 2.34 m/s leftwards b) d = 235 mm In this video: 00:00 Intro 00:29 Problem statement 00:56 Initial analysis 01:56 Coordinate system 04:34 Energy given to the system 06:13 Energy conservation 10:04 Finding Vel of B (part a) 13:20 Part b analysis & solving 16:35 Final thoughts To learn more please watch the video till end and if you have a question just ask in the comments section. If you enjoyed this video, please SUBSCRIBE and don't forget to press the bell 🔔, 👍like, comment and share. --------------------------- ▶️ Please Subscribe:    / @engineeringhack   --------------------------- ▶️Watch More Videos: • Collar & Pulley (Energy):    • Collar & Pulley | Solving with energy cons...   • 3 Block Pulley:    • Pulley with Friction | 3 Blocks | Newton's...   • Pulley with friction:    • Pulley with Friction | 2 Blocks | Newton's...   • Intro to pulley-collar problem:    • Intro to Collar & Pulley System | Accelera...   --------------------------- #engineeringdynamics #Engineeringuniversity #problemsolving #EngineeringHack #pulley #collarpulleysystem #collarsystem #collarproblem #pulleykinematics #collarkinematics #dynamics #pulleyproblem #university