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Question
You are given four pulleys and three strings. Draw a neat and labelled diagram to use them so as to obtain a maximum mechanical advantage equal to 8. In you diagram make the directions of load, effort and tension in each strand. What assumptions have you made to obtain the required mechanical advantage?
Solution
Assumptions:
(i) There is no friction in the pulley bearing.
(ii) The pulleys and the string are massless.
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