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Velocity-Time Graph

982 bytes added, 13:02, 14 February 2019
Example Calculations
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{| class="wikitable"
| style="height:20px; width:500px; text-align:left;" colspan = "3"|'''Calculate the [[acceleration]] of the [[object]] at each stage in this journey.'''
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|colspan = "3"[[File:vtGraph1.png|center|500px]]
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| style="height:20px; width:300px; text-align:left;" |'''State the known [[variable]]s.'''
[[File:vtGraphCalculateAcceleration3.png|centre|300px]]
v = 40m/s
 
u = 20m/s
 
t = 8s
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| style="height:20px; width:200px; text-align:left;" |'''2. [[Substitute (Maths)|Substitute]] the numbers into the [[equation]] and [[Solve (Maths)|solve]].'''
 
<math>a = \frac{v-u}{t}</math>
 
<math>a = \frac{40-20}{8}</math>
 
<math>a = \frac{20}{8}</math>
 
<math>a = 2.5m/s/s</math>
| style="height:20px; width:200px; text-align:left;" |'''2. [[Substitute (Maths)|Substitute]] the numbers into the [[equation]] and [[Solve (Maths)|solve]].'''
 
<math>a = \frac{v-u}{t}</math>
 
<math>a = \frac{10-40}{8}</math>
 
<math>a = \frac{-30}{8}</math>
 
<math>a = -3.75m/s/s</math>
|}
====Calculating Distance Travelled====
: The [[distance]] travelled can be calculated from a '''velocity-time graph''' by breaking the [[graph]] into simple shapes and finding the [[area]] of those shapes. This may use the equations <math>area = base \times height</math> for rectangular shapes and <math>area = \frac{base \times height}{2}</math> for triangular shapes.