Explanation:
We have:
r = 25cm = 0.25m + Distance traveled by the wheel in one hour: s = vt = 54.1 = 54km = 54000m + Perimeter of one revolution: C = 2 πг= 2.3.14.0.25 = 1.57m 응 S 54000 ~ 34395 rounds = A
=> Number of revolutions: n =
1.57
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