Mechanics

The second year of mechanics takes the forces and motion of Year 1 into two dimensions. Bodies can now turn as well as slide, forces act at angles, surfaces are rough, and particles fly through the air.

• An Overview — what Year 2 adds to Year 1 mechanics, the language, the core techniques and the common mistakes

The content statements

• Moments — S · the turning effect of a force, beams on supports, tilting, and non-uniform rods
• Resolving Forces and Inclined Planes — R · components, resultants, equilibrium of a particle, smooth slopes and pulleys
• Friction — R · the model F ≤ μR, rough planes, connected particles, and ladders against walls
• Projectiles — Q · time of flight, range, maximum height, the trajectory equation and projection from a height
• Kinematics with Calculus and Vectors — Q, R · suvat in vector form, variable acceleration with i and j components, and F = ma

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Each page has step-by-step notes, several worked examples, a quick-reference grid and ten practice questions with fully worked solutions.