大象传媒

Distance-time graphs

A horizontal line on a shows that the object is (not moving because the distance does not change)

A sloping line on a distance-time graph shows that the object is moving.

A distance-time graph with 2 coloured lines. 1 shows steady speed, the other shows steady speed, then stationary, then steady speed again.

Question

Calculate the speed of the object represented by the green line in the graph, from 0 to 3 s.

Calculate the average speed of the object represented by the green line in the graph, from 0 to 10 s.

Calculate the average speed of the object represented by the purple line in the graph, from 0 to 2 s.

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