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#1 2008-11-11 02:34:44

Prakash Panneer
Member
Registered: 2006-06-01
Posts: 110

Help me!

Man pushes a sled horiz to move up a hill.  Weight of girl plus sled is 35kg.  The anlge is 15 deg.  The height is 3.6m.If the sled movves up hill with constant veloxity how much work done by father?

Thanks in Advance!


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#2 2008-11-11 20:15:28

Dragonshade
Member
Registered: 2008-01-16
Posts: 147

Re: Help me!

Assuming there's no energy loss due to friction?
I think the work by father = the potential energy

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