Let us consider block of mass $m$ hanging by rope with force $T$. When no other horizontal and vertical forces are acting on a block, the block is at equilibrium if $$T=mg.$$ And if the rope is pulled up a distance $h$, $$\text{work done}=mgh$$
Don't we need more force to move the block upward? If we just use $T$, the body will be in equilibrium. Don't we need more force to lift the block?
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