A-level maths / Applied Year 1
Forces and motion
Choose the body, identify its forces, then connect the resultant with its acceleration.
Work at your own pace through the available lessons, with manual models, short animations and independent questions.
- Force diagrams, resultants and equilibriumDraw forces on one body, calculate a signed resultant and use Newton’s first law without confusing equilibrium with rest.
- Resultant force vectors and bearingsAdd force components, find a resultant magnitude and compass bearing, and distinguish an equilibrant from a third-law partner.
- Unknown forces and vector conditionsFind unknown force components from equilibrium, parallel and perpendicular directions, and resultant magnitude while checking every algebraic root.
- Newton’s second law, mass and weightUse resultant force equals mass times acceleration, convert units, distinguish mass from weight and solve signed force equations.
- Horizontal forces, resistance and motionCombine driving force minus resistance equals ma with SUVAT, infer unknown forces and separate powered motion from braking stages.
- Lifts, normal reactions and apparent weightUse R − mg = ma for passengers and cable equations for whole lifts, keeping velocity, acceleration and apparent weight distinct.