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17-07-2014
Physics

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A crane does 62,500 joules of work to lift a boulder a distance of 25.0 meters. How much did the boulder weight

Respuesta :

17-07-2014

Work = (force) x (distance)

62,500 joules = (boulder's weight) x (25 meters)

Divide each side by (25 meters) :

Boulder's weight = (62,500 joules) / (25 meters) = 2,500 newtons

That's about 562 pounds.

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