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Methods of Indirect Measurement Common angle method using ...

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In the problem that follows, ignore the fact that the entire ride is set at an <strong>angle</strong> to the<br />

horizontal. Consider the ride as if it were running in a horizontal manner. This is a place<br />

where your expertise in calculus will shine through. Good luck.<br />

PROBLEM<br />

(1) Given the rotation speed and the radius <strong>of</strong> the car cluster, write an equation to<br />

describe the position vs. time for an individual car in the frame <strong>of</strong> reference <strong>of</strong><br />

the car cluster.<br />

(2) Given the rotation speed and the radius <strong>of</strong> the car cluster on the total ride<br />

platform, write an equation to describe the ride position vs. time for a car cluster<br />

in the frame <strong>of</strong> reference <strong>of</strong> the stationary ground.<br />

(3) Add the results <strong>of</strong> your two equations to predict the overall position vs. time <strong>of</strong><br />

an individual car relative to the stationary ground. [This can be plotted on a<br />

graphing calculator if you have one with you. Hint: polar coordinates.]<br />

(4) Write the overall velocity vs. time equation for an individual car relative to the<br />

stationary ground.<br />

(5) Find the maximum and minimum accelerations (dv/dt) <strong>of</strong> an individual car as<br />

predicted by your equation.<br />

(6) Finally, compare your measured results with the calculated values.

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