Asked by Anonymous
A pendulum swings through an arc length of 1120 cm (Swing #1). With each further swing, the arc length is reduced by 15 %
State the growth factor.
Calculate the length of the arc in swing #5
I think im supposed to use this formula again, but I don't know how to use it. Tn = ar^n-1
State the growth factor.
Calculate the length of the arc in swing #5
I think im supposed to use this formula again, but I don't know how to use it. Tn = ar^n-1
Answers
Answered by
Steve
They cagily disguise the growth factor r as a percentage. You need to convert 15% reduction to a scale factor: 85% or 0.85
So, Tn = 1120 * .85^(n-1)
So, Tn = 1120 * .85^(n-1)
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