Homework Help Forum: physics

Posted by Anonymous on Wednesday, November 4, 2009 at 11:33am.

A 75 kg box slides down a 25o ramp with an acceleration of 3.6 m/s2. Find the coefficient of kinetic friction between the box and the ramp.

• physics - bobpursley, Wednesday, November 4, 2009 at 12:22pm

  The component of gravity down the plane is mg*SinTheta The normal component of mg*CosTheta So Net force=ma gravitydownramp-friction=ma mgSinTheta-mg*mu*CosTheta=ma solve for mu.

  
  

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