Physics - Mechanics - Work and Energy - Work done by a force - Work Done Explained

A 5-step lesson. Step 1: 'Work = Force × Distance (in the direction of force). W = F × d × cos(θ)' where θ is the angle between force and displacement. Units: Joules (J). 1J = 1N × 1m. Step 2: 'When force is in the same direction as motion (θ=0°): W = Fd'. Example: Push a 10N box 3m → W = 30J. Step