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A pendulum is swinging back and forth. After t seconds, the horizontal dista...
Mathematics, 29.03.2020 00:52 xojade
PLEASE HELP
A pendulum is swinging back and forth. After t seconds, the horizontal distance from the bob to the place where it was released is given by H(t)=7−7cos( 2π(t−2)/20). How often does the bob cross its midline? Give an exact answer.
Answers: 2
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