a wheel 14cm in diameter makes 3000 revolutions per minute find its speed in m/sec
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D = 14/100 = 0.14 m, R = 0.14/2 = 0.7 m
perimeter of circle (one revolution)= 2πr
= 2*22*7/7*100
= 44/100 = 0.44 m
Total distance covered or perimeter of 3000 revolution = 3000*0.44 = 1320 m
Revolution in 1 sec = 3000/60 = 50
Speed = Distance/time
= 1320/60 = 22 m/s
perimeter of circle (one revolution)= 2πr
= 2*22*7/7*100
= 44/100 = 0.44 m
Total distance covered or perimeter of 3000 revolution = 3000*0.44 = 1320 m
Revolution in 1 sec = 3000/60 = 50
Speed = Distance/time
= 1320/60 = 22 m/s
rabiyakhatunkhan:
thank u so much
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