How much mechanical work is done in lifting a 2- kg brick to a height of 1 m? holding the brick 1 m above the floor? slowly moving the brick a horizontal distance of 1 m? letting the brick fall a distance of 1 m?
How much mechanical work is done in lifting a 2- kg brick to a height of 1 m? holding the brick 1 m above the floor? slowly moving the brick a horizontal distance of 1 m? letting the brick fall a distance of 1 m?
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Transcribed Image Text:How much mechanical work is done in
lifting a 2- kg brick to a height of 1 m?
holding the brick 1 m above the
floor?
slowly moving the brick a horizontal
distance of 1 m?
letting the brick fall a distance
of 1 m?
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