document.write( "Question 1007677: Jacob and Isaac pull firewood on a sled with a mass of 60kg to the right across a snow covered field. Jacob pulls with a force of 30N and Isaac pulls with a force of 20N and there is a force of friction of 15N.
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Algebra.Com's Answer #623507 by fractalier(6550)\"\" \"About 
You can put this solution on YOUR website!
1) The net force is 30N + 20N - 15N = 35N to the right...friction almost always works in opposition to the motion...
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