document.write( "Question 1157720: Nicole is pulling a crate of food across the floor. The crate has a mass of 18.4kg, and when Nicole pulls with a force of 49.4N[W] the crate starts to move. She only needs to pull with 45.3N[W] to keep it moving. Draw Free body diagrams and find the coefficients of friction. \n" ); document.write( "
Algebra.Com's Answer #780606 by ikleyn(52786)\"\" \"About 
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\n" ); document.write( "Nicole is pulling a crate of food across the floor.
\n" ); document.write( "The crate has a mass of 18.4 kg, and when Nicole pulls with a force of 49.4 N [W] the crate starts to move.
\n" ); document.write( "She only needs to pull with 45.3 N [W] to keep it moving. Draw Free body diagrams and find the coefficients of friction.
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document.write( "In this problem, there are 2 (two) coefficients of friction.\r\n" );
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document.write( "Static friction coefficient is  \"49.4%2F%28m%2Ag%29\" = \"49.4%2F%2818.4%2A9.81%29\" = 0.2736.\r\n" );
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document.write( "Kinematic friction coefficient is  \"45.3%2F%28m%2Ag%29\" = \"45.3%2F%2818.4%2A9.81%29\" = 0.2510.\r\n" );
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