Newtons second law Tutorial 7

#EngineeringDynamics #EngineeringMechanics #Mechanics #Dynamics #NewtonsSecondLaw #NewtonSecondLaw #NewtonsLaws #Force #NetForce #ResultantForce #FreeBodyDiagram #FBD #Mass #Acceleration #Kinetics #ParticleDynamics #AppliedForces #ContactForces #Weight #Gravity #GravitationalForce #NormalForce #Friction #StaticFriction #KineticFriction #CoefficientOfFriction #Tension #Pulley #CableTension #Springs #HookesLaw #SpringForce #SpringConstant #SpringsInSeries #SpringsInParallel #InclinedPlane #InclinedPlaneDynamics #EquationsOfMotion #VectorForces #ComponentsOfForce #3DForces #3DDynamics #DynamicsProblems #MechanicalEngineering #Physics #ClassicalMechanics #NewtonianMechanics #EngineeringStudents ► Watch AD-FREE video AND download practice questions (COMPLETELY FREE) here: https://www.pemtutoring.co.uk/courses/07-newtons-seconds-law/ (no login or sign up required) ► FREE downloadable resources here: https://www.pemtutoring.co.uk/engineering-dynamics/ (no login or sign up required) 👇 SUBSCRIBE to PEM TUTORING YouTube channel 👇 https://www.youtube.com/channel/UCPm2FuKmrjLmbG0HbnV-mfg?sub_confirmation=1 ★☆★ FOLLOW ON SOCIAL MEDIA ★☆★ YouTube: https://www.youtube.com/channel/UCPm2FuKmrjLmbG0HbnV-mfg Website: https://www.pemtutoring.co.uk/ Instagram: https://www.instagram.com/pemtutoring/ Facebook: https://www.facebook.com/pages/category/Product-Service/PEM-Tutoring-101112152080368/ In the first six tutorials we focused on kinematics (how particles move). In this lesson we move into kinetics / particle dynamics — connecting forces to motion using Newton’s Second Law: ΣF = m a You’ll learn how to identify the net (resultant) force, draw correct free body diagrams (FBDs), and apply Newton’s 2nd law in 1D, 2D, and 3D. We also cover the most common forces used in Engineering Dynamics problems: weight, normal reaction, friction (static & kinetic), cable tension, spring forces (Hooke’s law), and gravitational attraction — with multiple applications including pulleys, inclined planes, elevators, and mass–spring systems. ⏱️ TIMESTAMPS ⏱️ 00:00 Introduction 00:44 Newtons 2nd law 02:51 Net force 07:11 Example: Calculation of net force, acceleration, and direction. 11:01 Weight 13:43 Friction 18:45 Tension 21:46 Springs 26:05 Spring combinations (Series and Parallel) 27:28 Gravitational Force 31:07 Summary of key equations 32:48 Newtons second law in 3 dimensions 35:13 Application 1 (one mass pushing on another mass) 38:48 Application 2 (Two masses connected by cable and pulley) 42:39 Application 3 (Inclined plane with static friction) 48:07 Application 4 (Inclined plane with kinetic friction) 50:18 Application 5 (Two masses connected by cable and pulley on inclined plane) 54:05 Application 6 (Mass and spring system) 56:03 Example 1 (inclined plane problem) 01:00:10 Example 2 (Varying force of friction) 01:03:46 Example 3 (Mass in elevator problem) 01:06:53 Example 4 (Spring combination) 01:09:36 Example 5 (Gravitational forces) 01:15:09 Example 6 Part 1 (Two masses on inclined planes) 01:20:53 Example 6 Part 2 (Two masses on inclined planes)