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Velocity-Time Graph

811 bytes added, 12:46, 14 February 2019
Calculating Acceleration
: The [[acceleration]] can be calculated from a '''velocity-time graph''' by reading the [[graph]] and using the equation <math>a=\frac{v-u}{t}</math>.
{| class="wikitable"
| style="height:20px; width:300px; text-align:left;" |'''Calculate the [[acceleration]] of the object in this journey.'''
| style="height:20px; width:300px; text-align:left;" |'''Calculate the [[acceleration]] of the object in this journey.'''
|-
|[[File:vtGraphCalculateAcceleration1.png|center|300px]]
|[[File:vtGraphCalculateAcceleration2.png|center|300px]]
|-
| style="height:20px; width:300px; text-align:left;" |'''Calculate State the known [[accelerationvariable]]s.'''v = 40m/s u = 20m/s t = 8s| style="height:20px; width:300px; text-align:left;" |'''State the known [[variable]]s.'''v = 10m/s u = 40m/s t = 8s | 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]] of the object in this journeynumbers into the [[equation]] and [[Solve (Maths)|solve]].''' <math>a = \frac{v-u}{t}</math> <math>a = \frac{10-40}{8}</math>
| style<math>a ="height:20px; width:300px; text\frac{-align:left;" |'''Calculate the [[acceleration]] of the object in this journey.'''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>a = b \times h</math> for rectangular shapes and <math>a = \frac{b \times h}{2}</math> for triangular shapes.