Sketch a distance-time graph from the body starting from rest. How will you determine the speed of the body from this graph?
Difficulty: Medium
Distance-time graph for a body starting at rest:
When a body starts from rest, the distance-time graph is a straight line. Its slope gives the speed of the object.
Speed of a body from the graph:
Consider two points A and B on the graph
Speed of the object=slope of line AB
= Distance EF/Time CD=2
= $\frac{Distance \: EF}{Time \: CD}$
= $\frac{20m}{10s}$
= $\frac{2m}{s}$
The speed found in the graph is 2m/s
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