A 1400kg car enters an inverted circular track at 85 m/s of radius 50m that is banked at 75 degrees. What is the minimum coefficient of static friction that is needed to keep the car on the track?

Question

anonymous · Answer

Try drawing the free body diagram first, that helps a lot. and draw the arrow of the friction

anonymous · Answer

So in this problem, the centripetal force, normal force, and force of gravity are present. But I don't know the equation of where all this fits in together

anonymous · Answer

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anonymous · Answer

you know that the up arrow is FN and the down arrow is mg. The now you're trying to find $$mus$$. You know that FII and Ff are going in the same direction (F parallel and force of friction)