Answer to Question 9

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Graph:

The maximum gradient gives a rise of 4 m in 9.6 s. This gives a gradient of 4 m 9.6 = 0.42 m s-1.

Minimum gradient:

    Dy = 4.0 0 = 4.0 m

    Dx = 10.4 0 = 10.4 s

Gradient = 0.38 m s-1