Force diagrams first
Force diagrams first
A free-body diagram shows one body only, with every external force acting on it. In applications of forces, getting this sketch right usually decides the rest of the solution.
Step-by-step lessons on Edexcel A Level Maths Applications of Forces, covering 7.1 Static Particles, 7.2 Modelling with Statics, 7.3 Friction and Static Particles, 7.4 Static Rigid Bodies, 7.5 Dynamics and Inclined Planes, and 7.6 Connected Particles 2. Each one builds up to exam-style questions. Build fluency with the core pure algebra and calculus toolkit early, since almost every mechanics and statistics topic on the course depends on it.