The graph above shows the acceleration of a car over 8 seconds.Name: Date:

1) Estimate the area under the curve between 2 and 8 seconds using 3 strips (include the correct units in your answer).

2) What does your answer to 1) represent?

3) Is this an overestimate or underestimate? Justify your answer

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2) The area under the curve represents the velocity of the car.

3) Under-estimate as the area of each trapezium is below the curve.

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# Answers

1) Total area of 3 trapeziums = 94 + 126 + 142 = 362m/s2) The area under the curve represents the velocity of the car.

3) Under-estimate as the area of each trapezium is below the curve.

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