Posted by Fatima on Wednesday, December 22, 2010 at 5:06pm.
normal force: weight of the cart+downward component of pushing.
fn=mg+F*sin30
friction= mu*fn
you did not state the pushing force value.
No work is done by the normal force, because the cart does not go in that direction.
Thanks, I got that far but the question was asked exactly as I wrote it. My teacher did not include a pushing force value. Can you think of any way to find the normal force without it?
Sure: Go to the market and get a crystal ball that can see inside your teacher's mind. The question is flawed.
Alright, but thanks anyway!
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