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How much energy is required to raise a mass of 200kg to a height of 4 m?
Wiki User
∙ 13y ago
Potential energy of the mass referred to the floor level = M g H .
At 4 m above the floor, its potential energy will be M g H = (200) (9.8) (4) = 7,840 joules.
That's the energy you have to come up with from somewhere in order to hoist the block.
Wiki User
∙ 13y ago
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