Question

2. A car is moving on a straight road with uniform acceleration. The speed of the car varies with time as follows.

Time (h) 0 2 4 6 8 10

Speed (m/s) 4 8 12 16 20 24

i. Draw the speed –time graph by choosing a convenient scale. [3]

ii. Calculate the acceleration of the car. [1]

iii. Calculate the distance travelled by the car in 10 seconds. [1]



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Answer 1

Acceleration of the car= slope of line AB = 24-4/10-0 = 20/10 = 2m/s2 (ii) Distance traveled by the car in 10s = are of trapezium