a body takes 5½ revolution of circle radius 1m in 5sec find its average speed
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Answer:
Explanation: circle of radius 1 m
No of revolution = 5.5
Time =5sec
Now...
To find average speed
Distance = 5 × circumference +circumference/2 ....(1)
Circum.. = 2pie r
2 ×22/7×1
=44/7 m
Putting this value in (1)
5 × 44/7 + 44/7//2
220/7 + 44/14
440 + 44//14
=484/14
=242/7
Now average speed = distance /time
=242/7//5
=242/35
Hope it help
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