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A pendulum 45cm long swings through a vertical angle of 30 degrees.Find the height...
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Step 1: Solve for x, which is the length of the line between the ceiling and the point where the imaginary line from the pendulum bob meets the wall.
Step 2: Solve for h, which is equal to the length of the pendulum minus` ` x:
Therefore, the pendulum bob has risen 6cm.
Posted by crmhaske on May 19, 2013 at 1:25 AM (Answer #1)
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