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OpenStudy (anonymous):
Simple work question: I have a ping pong ball that weighs 2.7g - I have to lift the ping pong ball 10cm. How much work?
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OpenStudy (anonymous):
Work = Force x distance if I recall distance is easy that is 10cm or .1 meters but I don't remember how to do Force...mass(weight in this case)....in some kind of relation with the acceleration of gravity...oh lifting straight up: I know that matters. Hope someone can help.
OpenStudy (anonymous):
Force = mass times accelleratn therefore F = ma W = mgdeltay = (2.7)(9.8)(.1) = 2.646 J = 2.6 J
OpenStudy (anonymous):
I knew it was easy ---thanks
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