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A 1500kg car is travelling around a large roundabout of radius 40m at a constant speed of 50kmh-1.

Calculate the time it takes to go halfway aound the roundabout.

Just wondering which equation I should use. Thanks

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Whole circumference of a circle of radius r = 2πr.

1 km/h = 1000/3600 m/s
Distance = speed × time.

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