# On the ride "Spindletop" at an amusement Park, people stood against the inner wall of a...

###### Question: On the ride "Spindletop" at an amusement Park, people stood against the inner wall of a hollow vertical cylinder with radius 2.5 m. The cylinder begins to turn, the rider, wall, and the floor moves in unison. When the cylinder reaches a constant speed of 7.2 m/s, the floor on which the rider is drops off. The rider does not fall with it but instead is pinned against the wall. (a) What is the minimum coefficient of static friction? (b) Does your answer above depend on the mass of the passenger? A baseball (m= 0.145 Kg) traveling at 32 m/s moves a field's glove backward 25 cm when the ball is caught. What is the average force exerted by the ball on the glove.

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