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Sharpay21355 · Sep 20, 2011, 08:43 PM

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Sharpay21355 · Sep 20, 2011, 08:44 PM

A clerk moves a box of cans down an aisle by pulling on a strap attached to the box. The clerk pulls with a force of 176.0 N at an angle of 23 with the horizontal. The box has a mass of 32 kg, and the coefficient of kinetic friction between the box and the floor is 0.45. Find the acceleration of the box.

CliffARobinson · Sep 20, 2011, 09:47 PM

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Unknown008 · Sep 22, 2011, 02:45 AM

Forces:

$F_{applied} - F_{friction} = ma$

Then,

$F_{friction} = \mu R$

Where R is the normal reaction between the object and the surface, mu is the coefficient of friction. R is obtained from Newton's Third law of motion, which states that every action has an equal and opposite reaction.