Derive the formula for the velocity ratio of a wheel and axle.

Derive the formula for the velocity ratio of a wheel and axle.

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It consists of a large wheel of radius R attached to an axle of radius r.

Note that in this case, both the wheel and axle make the same number of revolutions at any time;
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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sharon kalunda answered the question on April 24, 2019 at 07:10

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