4 pulley system is shown in the diagram if its efficiency is 80 /calculated by using the formula:the effort applied to lift the load or output work when the load is lifted up to 6meter or inputwork mechanical advantage
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Fixed pulley: A pulley which has its axis of rotation fixed in position, is called a fixed pulley.
Single fixed pulley is used in lifting a small load like water bucket from the well.
Explanation:
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