A wheel has a radius of 28 cm .How many revolutions will it make to travel 704 m?
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Radius of the wheel (r)=28cm
Distance covered by 1revolution = circumference
of the wheel(C)
= 2πr
=2×22/7×28
= 2×22×4
= 176cm
Let the number of revolutions
to travel 704 m = n
n = 704m/C
= 70400cm/176cm
= 400
Therefore,
In 400 revolutions the wheel
travel 704m .
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