how can you find the coefficient of static friction of an object experiencing a centripetal force?

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how can you find the coefficient of static friction of an object experiencing a centripetal force?

2006-10-22 05:58:50 · 2 answers · asked by bellabambina25 1 in Science & Mathematics ➔ Physics

2 answers

Let's assume the situation is that a weight sits on a rotating horizontal turntable and there is frictional contact. Then the centripetal acceleration is w^2*r, where w is the angular rate in rad/sec. At the angular rate ws at which the weight slips, the accel. is ws^2*r and the centripetal force is m*ws^2*r. The normal (downward) force is m*g. The coefficient of friction is thus m*ws^2*r/m*g = ws^2*r/g.

2006-10-22 06:23:45 · answer #1 · answered by kirchwey 7 · 0⤊ 0⤋

The question is overly simplistic. I CAN solve whatever problem you're working on, but I need to see the whole problem.

Messenger me on yahoo, my ID is
fortitudinousskeptic

We'll discuss it.

2006-10-22 06:06:49 · answer #2 · answered by Anonymous · 0⤊ 0⤋