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Using a wheelbarrow can make it easier to lift a heavy object by
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Using a wheelbarrow can make it easier to lift a heavy object by

User Yuris
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A wheelbarrow is to machines combined
User Sml
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Its because a wheelbarrow is 2 simple machines combined. its a lever and a wheel and axle. when you apply effort to the lever it will give upward force to the load making it easier to lift heavy objects.
User Emira
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