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Solution 6.1

From Mechanics

Revision as of 16:36, 4 March 2011 by Ian (Talk | contribs)
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The area under the velocity-time graph gives the distance travelled.

This area can be calculated either by breaking up the area into three parts, two triangles and a rectangle or by using the formula for the area of a trapedium as the graph in the figure defines a trapezium with the t-axis.

This latter method gives

2121+16−7s9 ms-1=135 m 

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