The velocity ratio of a differential pulley block with D and d as the diameters of larger and smaller pulley, is

A $$\frac{{\text{D}}}{{{\text{D}} - {\text{d}}}}$$

B $$\frac{{\text{D}}}{{{\text{D}} + {\text{d}}}}$$

C $$\frac{{2{\text{D}}}}{{{\text{D}} - {\text{d}}}}$$

D $$\frac{{2{\text{D}}}}{{{\text{D}} + {\text{d}}}}$$

Correct Answer: $$\frac{{2{\text{D}}}}{{{\text{D}} - {\text{d}}}}$$

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#Mechanical Engineering #Engineering Mechanics

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