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    • Thread Starter
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    So i wasnt able to compelete this question a while back:

    Two men,Each 80kg, One woman 60kg, walking along the edge of a lake, womans hat gets blown off, reeds catches the hat 4 metres away, they try to use a long plank of 6 metres (weight ignored) one edge of the plank is on the edge of the lake whilst the other edge is over hanging.

    With two people standing on the plank at the edge of the lake. Determine whether

    -One of the men can retrieve the hat.
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    Arrange the plank such that it extends the minimum distance to the hat. 1 man on the end, other man and the woman on the other. Take moments about the bank edge.
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    pls
 
 
 
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Updated: October 15, 2017
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