A car moves on a circular path of radius 10metre .It completes 5 revolution in 5 minute. what is average speed
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Answer:
Radius = 10 m.
Number of revolutions = 5.
Time = 5 min = 5×60 seconds.
Angular speed = 2×pi ÷ Time = 2×3.14 ÷ 5×60 = 1/50 m/s
Average Speed = Angular Speed × Radius × Number of Revolutions = 50÷50 = 1 m/s
The average speed of the car is 1 m/s.
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