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MIT OCW Physics 20 Online
OpenStudy (eric_d):

8)

OpenStudy (eric_d):

http://prntscr.com/4bnzz0

OpenStudy (eric_d):

@Fifciol

OpenStudy (fifciol):

k*P=E/t E=W=F*d v=d/t k is your efficiency

OpenStudy (eric_d):

What do I need to find first

OpenStudy (eric_d):

and.. time is not given

OpenStudy (fifciol):

substitute E=F*d to first equation, then d/t=v

OpenStudy (eric_d):

|dw:1407749110699:dw| like this

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