Mechanics is a subject for Edexcel. The velocity-Time graph is a section in Mechanics. .

1. Velocity-Time graphs
This is a graph of velocity plotted against time. For uniform velocities the graph is
a straight line..
Velocity(v)
Time (t)
The gradient of the straight line = acceleration
ie. Acceleration = Tan α
Acceleration can be positive or negative. Negative acceleration is called retardation..
α
A B
C

2. Distance travelled
Velocity(v)
ms-1
Time (t) sec
t
Distance travelled in t sec. = area OACD.
α
A B
C
O D

3. Particle moving with a retardation
The form of the graph is as shown.
Velocity(v)
ms-1
Time (t) sec
t
The distance travelled in t seconds = area OABC
B
O
A
C

4. Worked Example on velocity-time
graph
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graph. View this video and learn how to solve a
problem on this topic.
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