Question

In a wheel and axle, the diameter of the wheel is 490 mm, and that of the axle is 180 mm.
The thickness of the cord on the wheel is 10 mm, and that on the axle is 20 mm. The velocity
ratio of the machine will be equal to
1) 2.50
2) 2.30
3) 2.33
4) 2.53

Answer 1

Answer is 3

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