Changes

[[File:sdtTriangle.png|right|300px|thumb|This equation triangle shows how to rearrange the equation to find speed, distance or time. To find speed cover over the s to find it is d/t. To find distance cover over the d to find it is s x t. To find time cover over t to find it is d/s.]] <math>Speed = {\tfracfrac{distance}{time}} </math> is an equation which can be used to calculate the [[speed]] of an [[object]] given the [[distance]] traveled and the [[time]] taken to travel that [[distance]].

<math>Speed = {\frac{distance}{time}} </math> <math>Speed = {\frac{metres}{seconds}} </math> <math>Speed = {\frac{m}{s}} </math> <math>Speed = m/s </math> ===Example Calculations==={| class="wikitable"|-| style="height:20px; width:300px; text-align:center;" |'''A person jogs 300 [[metre]]s in 120 [[second]]s. Calculate the speed of the jogger.'''| style="height:20px; width:300px; text-align:center;" |'''A racing car travels 500 [[metre]]s in 10 [[second]]s. Calculate the speed of the racing car.'''|-| style="height:20px; width:300px; text-align:left;" |distance = 300m time = 120s <math>Speed = {\tfrac{distance}{time}} </math> <math>Speed = {\tfrac{300}{120}} </math> <math>Speed = 2.5m/s </math>| style="height:20px; width:300px; text-align:left;" |distance = 500m time = 10s <math>Speed = {\tfrac{metresdistance}{secondstime}} </math>:<math>Speed = {\tfrac{m500}{s10}} </math>:<math>Speed = m50m/s </math>|-| style= "height:20px; width:300px; text-align:center;" |'''A horse takes 20 [[minute]]s to trot 2.4 [[kilometre]]s. Calculate the speed of the horse in [[Metres per second|metres per second ]].'''| style="height:20px; width:300px; text-align:center;" |'''The International Space Station takes 92 [[minute]]s to orbit the Earth once travelling 42,000 [[kilometre]]s. Calculate the speed of the ISS.'''|-| style="height:20px; width:300px; text-align:left;" |distance = 2.4km = 2400m time = 20[[min]] = 1200s <math>Speed = {\tfrac{distance}{time}} </math> <math>Speed = {\tfrac{2400}{1200}} </math> <math>Speed = 2m/s </math>| style="height:20px; width:300px; text-align:left;" |distance = 42,000km = 42,000,000m time = 20[[min]] = 5400s <math>Speed = {\tfrac{distance}{time}} </math> <math>Speed = {\tfrac{42000000}{5400}} </math> <math>Speed = 7608.7m/s </math> <math>Speed \approx 7600m/s </math>|}