Pyhsics
posted by Shane .
A sled slides down a snowcovered hill at CONSTANT SPEED. If the hill makes an ANGLE of 10degrees ABOVE THE HORIZONTAL, WHAT IS THE COEFFICIENT OF KINETIC FRICTION BETWEEN THE SLED AND THE SNOW?
~>HELP!

Well, constant speed means no net force, so friction must equal the component of weight down the hill
mg*mu*cosTheta=mg*SinTheta
TanTheta=mu
check my thinking. 
0.176

Coefficient of kinetic friction=
tan0 Accelaration/gcos0
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