The graph given below shows the motion of four runners p, q, r, and s in a 5 km marathon. a) who ran fastest? explain your answer? b) how can we determine the speed of runner q from the graph? c) calculate average speed of runner r? d) plot a distance-time graph for uniform motion?

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As we can see from the graphical data,

The distance covered by all the four runners is the same 5 km.

Among the four athletes, Athlete P covers the distance in under three hours.

It is the minimum time taken among the four athletes.

Thus Athlete P covers the 5 km distance in the minimum amount of time.

We know that speed =

Since time taken for P is minimum, his speed is the maximum. P ran the fastest.

Time taken by Q = 4.5 hours.

Speed of Q =

                     =

                    = 1.1 km/ hr

Time taken by R = 6 hours.

Speed of R =

                     =

                    = 0.8 km/ hr

ur answer would be b hope i let me know if it is right

fire could start, buildings collapsing, and ash falling from the sky.

explanation:

this is because the buildings or plants could catch on fire and the buildings would most likely collapse. lastly ash would fall because all the burning would cause ash to fall from the sky.

hope this .