19,879
edits
Changes
no edit summary
===Equation===
:<math> [[Work Done]] = Force \times Distance moved in the direction of the force</math>
:<math> W = F \times d</math>
:<math> W = Fd</math>
: Work done is written with a capital W. Force is written with a capital F. Distance is written with a lower case d.
===About Work DoneExample Calculations===: 1. A person lifts a 40N box by a height of 1.2m. Calculate the work done by the person against gravity.:<math>Force = 40N</math>:<math>Distance moved in the direction of the force = 1.2m</math>:<math> W = Fd</math>:<math> W = 40 \times 1.2</math>:<math> W = 48J</math>: 2. The brakes on a car apply a force of 10,000N. The car travels a distance of 15m braking. Calculate the work done by the brakes. : 3. A person carries a 20N box along a horizontal path of 20m.