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 second. 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?
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Answer 1

Answer:

The shaded area which is equal to 1 / 2 x 4 x 6 = 12 m represents the distance travelled by the car in the first 4 s. The part of the graph in red colour between time 6 s to 10 s represents uniform motion of the car.