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A machine can help a person to reduce the force required to change the to .

Explanation: If we want to shift the position of a heavy object like a plant stem then lots of force is required and for this many people might be required to generate the force. But if we use a lever(machine) then less man power will be required as the lever reduces the required force and helps to shift the position of the object.

So, a machine can help a person to reduce the force required to change the to .

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