An object is moving in a circle of radius 100m with a constant speed of 31.4m/sec. What is its average speed for one complete revolution
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Answered by
28
Total Distance = 2πR
= 2 × π × 100 m
= 200 π m
Time taken to travel this distance
T = Distance / Speed
= 200 π m / (31.4 m/s)
= 20.0 s
Average speed = Total distance / Total time
= 2 π R / T
= 200 m / 20.0 s
= 10 m/s
Average speed of object is 10 m/s
= 2 × π × 100 m
= 200 π m
Time taken to travel this distance
T = Distance / Speed
= 200 π m / (31.4 m/s)
= 20.0 s
Average speed = Total distance / Total time
= 2 π R / T
= 200 m / 20.0 s
= 10 m/s
Average speed of object is 10 m/s
Answered by
5
Answer:
Explanation:it's 31.4
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