Wednesday
September 3, 2014

Homework Help: Math-Pre Cal & Trig

Posted by Christa on Sunday, July 25, 2010 at 9:38pm.

A pendulum swings uniformly back and forth, taking 2 seconds to move from the position directly above point A to the position directly above point B.
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_______________._______________
A . B
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(SIMPLE DRAWING)


The distance from A to B si 20 centimeters. Let d(t) be the horizontal distance from the pendulum to the center line at time t seconds (with distances to the right of the line measured by positive numbers and distances to the left by negative ones.) Assume that the pendulum is on the center line at time t= 0 adn moving to the right. Assume that the motion of the pendulum is simple and harmonic. Find the rule of d(t).

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