Velocity - Time Graphs.
The total distance
travelled by the object can be calculated
by measuring the area between the
graph and the baseline.
This is called the area under the
graph.
The area under the graph shown on the previous page
can be divided into two triangles and one
rectangle.
The area of triangle A is half base x height
= 0·5 x 10 x 20
= 100.
The area of triangle C
= 0·5 x (70 - 30) x 20
= 400.
The area of rectangle B
= (30 - 10) x 20
= 400.
The distance travelled is the total area = A + B + C
= 100 + 400 + 400
= 900 m.
Headings Forces and
Motion Search Questions 
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