<p><mark style="background-color:rgba(0, 0, 0, 0)" class="has-inline-color has-vivid-red-color">Calculations Involving Work Done<br></mark>In calculating work done, we say energy transformed = work done = applied force x distance.<br>As such, we write this equation as:<br>W = F x d<br>Examples</p> <li>A load of mass 50kg is pushed along a floor with a force of 20N for a distance of 5m. Calculate the work done.<br>Solution:<br>Use WD = F x d = 20N x 5m<br>WD = 100Nm<br>Note that energy transformed = work done. Energy is measured in Joules (J) so Nm must be the same unit as J.<br>This means we can say that WD = 100J</li> <div class="sign-up-notice-after-excerpt-two" style="background-color:powderblue;"> You are viewing an excerpt of this lesson. Subscribing to the subject will give you access to the following: <ul> <li>The complete lesson note and evaluation questions for this topic</li> <li>The complete lessons for the subject and class (First Term, Second Term & Third Term)</li> <li>Media-rich, interactive and gamified content</li> <li>End-of-lesson objective questions with detailed explanations to force mastery of content</li> <li>Simulated termly preparatory exams</li> <li>Discussion boards on all lessons and subjects</li> <li>Guaranteed learning</li> <li>Win great prizes for topping the <a href="https://www.primacyebooks.com">Primacy Ebooks</a></li> </ul> </div> <div class="sensei-message info"></div>