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A block and tackle system of pulleys has a velocity ratio of 4. Draw a labelled diagram of the system indicating clearly the points of application and directions of load and effort.

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Question

A block and tackle system of pulleys has a velocity ratio of 4.

  1. Draw a labelled diagram of the system indicating clearly the points of application and directions of load and effort.
  2. What is the value of the mechanical advantage of the given pulley system if it is an ideal pulley system?
Diagram
Numerical
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Solution

(a)

(b) M. A. = `"Load"/"Efforts" = (4"T"_"L")/"T"_"E" = 4`

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