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A car travels one complete lap around a circular track at a constant speed of 120 km

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A car travels one complete lap around a circular track at a constant speed of 120 km h−1.

a. If one lap takes 2.0 minutes, show that the length of the track is 4.0 km.
b. Explain why values for the average speed and average velocity are different.
c. Determine the magnitude of the displacement of the car in a time of 1.0 min.
(The circumference of a circle = 2πR, where R is the radius of the circle.)

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Given constant speed is 120kmh a speeddistancetime distancespeedtimehere time is given in minutes ...View the full answer


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Cambridge International AS And A Level Physics Coursebook

Cambridge International AS And A Level Physics Coursebook

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Authors: David Sang, Graham Jones, Gurinder Chadha, Richard Woodside

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