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How Do You Solve This Problem?

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How Do You Solve This Problem?

Postby chait » Mon Jan 13, 2014 7:22 pm

six.A building worker holds a heavy tool box. How much function is accomplished by the worker?

A. FGd

B. - FGd

C. mgh

D. ½ mv2

E. zero
chait
 
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Joined: Mon Feb 11, 2013 5:52 pm

How Do You Solve This Problem?

Postby Hann » Tue Jan 14, 2014 4:26 am

C

W = Fd

d = vertical displacement = h

F = ma

a = gravity

so..

W = mad = mgd
Hann
 
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Joined: Mon Jan 13, 2014 9:43 pm


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