A car travels from stop a to stop b with a speed of 30km/h and then returns back to a with a speed of 50km/h.Find
a.Distance
b.Displacement
c.Average speed
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distance=30+50=80
average speed=distance÷time
(30+50)÷2hour's
80÷2
40/1 hours
average speed=distance÷time
(30+50)÷2hour's
80÷2
40/1 hours
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