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A differential pulley block has larger and smaller diameters of 100 mm and 80 mm respectively. Its velocity ratio is

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A differential pulley block has larger and smaller diameters of 100 mm and 80 mm respectively. Its velocity ratio is
  • A5
  • B10
  • C20
  • D40
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Discussion 1

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CCommunity
Velocity ratio of differential pulley = $(\frac{{2D}}{{\left( {D - d} \right)}})$

where

D = diameter of larger pulley

d = diameter of smaller pulley

Therefore,

Velocity ratio = $(\frac{{2 \times 100}}{{100 - 80}})$

Velocity ratio = $(\frac{{200}}{{20}})$

Velocity ratio = 10