A wheel has diameter 84 cm.The number of complete revolution it will take to cover 792m is
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Distance covered=2πr×n rotations.....(1)
~2πr=circumference of circle(c)
Diameter= 84cm=0.84m
R= 0.84/2=0.42m
C= 2×π×0.42
=2×22/7×0.42=2.64m
Putting values in eq1
792=2.64×n revolution or( rotation)
n= 300 revolutions
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