Physics
In a block and tackle system consisting of 3 pulleys, a load of 75 kgf is raised with an effort of 25 kgf.
Find —
(i) the mechanical advantage,
(ii) the velocity ratio, and
(iii) the efficiency.
Machines
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Answer
Given,
Effort = 25 kgf
Load = 75 kgf
As we know that,
Substituting the values in the formula we get,
As we know,
V.R. = n = 3
Therefore, efficiency = 100%
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