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Physics - Mechanics - Circular Motion and other Applications of Newton's Laws // Please explain thoroughly

Screen Shot 2019-05-05 at 11.06.36 PM.png

Screen Shot 2019-05-05 at 11.06.36 PM.png
A certain banked circular race track with angle of inclination Bis designed for cars traveling at a specific speed 00 to negotiate the curve without any help from the
force of friction from the road. Take 120: 50 km / h and 6 = 18°. (a) Find the radius R of the circular track. (b) If y, = 0.95 and ,uk = 0.70 between the fires and the track, what are the maximum
and minimum allowed speeds of the car such that it will not slide on the track?

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Subject: Physics, Science

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