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Draw a labelled diagram of an arrangement of two pulleys, one fixed and other moveable. In the diagram, mark the directions of all forces acting on it. What is the ideal mechanical advantage of the system? How can it be achieved?

Machines

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Answer

Below is the diagram of an arrangement of two pulleys, one fixed and other moveable:

Tension on each strand of string is as shown in the diagram. Machines, Concise Physics Class 10 Solutions.

The ideal mechanical advantage of a single movable pulley with a fixed pulley system is 2. The ideal mechanical advantage of 2 can be achieved by assuming there is no friction in the pulley bearings, between the string and surface of the rim of the pulley and that string and the pulley are massless.

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