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OpenStudy (anonymous):
When a power of 310 watts is applied to it, a pulley lifts box A one meter. The same pulley is used to lift box B. When the same amount of power is applied to box B, it is raised two meters. What can you say about the mass of the two boxes?
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OpenStudy (anonymous):
that means that box A is twice the mass of box B because a lighter object is lifted higher. And it was lifted twice as much.
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