Skills for analyzing processes involving circular motion
A circular track is in a horizontal plane, has a radius of r meters, and is banked at an angle θ above the horizontal. (a) Develop an expression for the speed a person should rollerblade on this track so that she needs zero friction to prevent her from sliding sideways off the track. (b) Should another person move faster or slower if her mass is 1.3 times the mass of the first person? Justify your answer.
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