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Asked Dec 19, 2019
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The initial swing (one way) of a pendulum makes an arc of 2 ft. Each swing (one way) thereafter makes an arc of 85% of the length of the previous swing. What is the total arc length that the pendulum travels?

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It is given that initial swing (one way) of a pendulum makes an arc of 2 ft. and each swing (one way) thereafter makes an arc of 85% of the length of the previous swing.

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Thus, length of the distance covered by in each swing of the pendulum is in a geometric series with first term and the geometric difference as shown below: a= 2 85 100 17 20 ||

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Math

Algebra

Sequence and Series

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