Homework Help: Physics

Posted by Nikita on Thursday, October 22, 2009 at 3:21pm.

An object slides down a inclined surface in the presence of kinetic friction forces.
At the given inclination the kinetic friction force is found to be of magnitude 90 N.
Now, the angle that the surface makes with respect to the horizontal is increased and the object continues to slide down the surface.
WHAT will the magnitude of the new kinetic friction force present be?

Physics - bobpursley, Thursday, October 22, 2009 at 3:22pm
Why are you avoiding analyzing friction force vs angle?
Physics - Nikita, Thursday, October 22, 2009 at 3:27pm
I haven't gotten to the chapter on friction yet, so I am totally clueless...I am still on kinematics and biomechanics right now.
Physics - Nikita, Thursday, October 22, 2009 at 3:43pm
So I am guessing kinetic friction forces is the same as friction problem before, so the answer would be greater than zero and less than 90 N?
Physics - bobpursley, Thursday, October 22, 2009 at 3:52pm
yes.

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