Asked by ash
A coach with a mass of 100 kg is placed on an adjustable ramp attached to a truck. As one end raises, the couch begins to move downward. If it sldes with an acceleration of .79 m/s^2 at 12 degrees, what is the coefficient of kinetic friction.
I think I found the normal force, but I don't think I found the correct force of friction. Any help would be nice. Thanks!
I think I found the normal force, but I don't think I found the correct force of friction. Any help would be nice. Thanks!
Answers
Answered by
bobpursley
net force down the plane=mass*a
100g*sin12-mu*100g*cos12=mass*a
solve for mu. g = 9.8N/kg
100g*sin12-mu*100g*cos12=mass*a
solve for mu. g = 9.8N/kg
Answered by
ash
I don't think I did it correctly. I got a very very small number.
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