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OpenStudy (anonymous):
An engineer designs a machine that lifts a 5kg object to a height h. If the force required is 10 N. what is the minimum distance over which this force must be applied???
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OpenStudy (anonymous):
The work is the same, so 5*9.81*h=10*d
OpenStudy (anonymous):
But i have 2 unknowns d and h
OpenStudy (anonymous):
Do you have to give a numerical answer, or an answer in therms of h?
OpenStudy (anonymous):
oh sorry yes you are right answer is in therms of h... thanks for your help
OpenStudy (anonymous):
You are welcome. : )
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