To lift up an object, the simple machine that can not be used is:

pulley

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wedge

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lever

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inclined plane

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Solution

The correct option is B wedge
A wedge is a simple machine that is used to cut or split an object and it can not be used to lift whereas a pulley, an inclined plane and a lever, all these three machines can be used to lift an object.

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Similar questions

___ is a simple machine used to lift heavy objects.

A wedge is a simple machine that can be used to split objects.

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