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Modern roller coasters have vertical loops like the one shown in the figure below. The radius of curvature is smaller at the
ou whirl a ball tied to the end of the rope in a horizontal circle at constant speed, as shown in the diagram below. Use uest
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Answer #1

1)

Acceleration, a = 1.5 g = 1.5 x 9.8 = 14.7 m/s^2

Acceleration, a = v^2/r

Velocity, v = sqrt(ar)

v = sqrt(14.7 x 19)

Velocity, v = 16.71 m/s

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