2 man, mass m1 and m2 stands on a boat mass M at L distance apart on static water. they slowly swop their places. find the distance the boat move due to this.(adsbygoogle = window.adsbygoogle || []).push({});

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i know that the centre of mass remains unchange, and at start,

Xcm=m1x1+m2x2+Mxb/m1+m2+M

then after changing place, i let y be the distance moved, Xcm becomes

Xcm'=m1(x2+y)+m2(x1+y)+M(xb+y)/m1+m2+M

do i simply divide the 2 equations? then i'll end up with lotsa varibles....

then i am pretty much stuck here.. pls offer ur advice, hints, help ... thx in advance :)

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# Homework Help: 2 man on a boat

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