If the free end of the string moves through a distance $x_{1}$ find the distance by which the load W is raised

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Solution

If the free end of string moves the distance x downwards each side of the string of the pulley P1 will shorten by length x2hence the load W will move upwards by the distance x2

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If the free end of the string moves through a distance x1 find the distance by which the load W is raised

If the free end of string moves the distance x downwards each side of the string of the pulley P1P1 will shorten by length x2x2hence the load W will move upwards by the distance x2

If the free end of the string moves through a distance $x_{1}$ find the distance by which the load W is raised

If the free end of string moves the distance x downwards each side of the string of the pulley P1 will shorten by length x2hence the load W will move upwards by the distance x2