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OpenStudy (anonymous):
please... really need help. :) how much work is done by the gravitational force when 265 kg pile driver falls 2.80 m?
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OpenStudy (anonymous):
heeeeeeelp!
OpenStudy (lucaz):
work is force times distance, the force here is the mass times gravity, substitute the values and calculate
OpenStudy (anonymous):
so the answer is 7271.6 J? i converted the kg x m^2/s^2 in 1 J. :)
OpenStudy (lucaz):
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