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Question
What is the velocity ratio of a single movable pulley? How does the friction in the pulley bearing affect it?
Solution
The velocity ratio of a single movable pulley
V.R. = `("Distance moved by the effort" d_E)/("Distance moved by load" d_L)`
V.R. = `(2d)/d = 2`
Friction has no influence on the pulley bearing.
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