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Question:

The speed-time graph for a car is shown is Fig. 8.12.

(a) Find how far does the car travel in the first 4 seconds. Shade the area on the graph that represents the distance travelled by the car during the period.

(b) Which part of the graph represents uniform motion of the car?

Answer:

(a)

The shaded area which is equal to represents the distance travelled by the car in the first 4 seconds.

(b)

The part of the graph in red colour between time 6 s to 10 s represents uniform motion of the car.

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