write down the formula to calculate the velocity ratio of an wheel and axle
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Answer: Thus, in one revolution the distance moved by the effort= 2pR, And the distance moved by the load= 2pr. Hence, the velocity ratio of the system= 2pR/2pr = R/r. Thus the velocity ratio of a wheel and axle is the ratio of the radius of the wheel to the radius of the axle.
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wheel is a machine whereas a axle is a used to make our life easier.
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