What is the pendelum formula? (this was on the sept act)

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1

<p>so does anyone know?</p>

2

<p>there is no formula. What you have to do is find the length of the arc. i remember this problem, and it asked if a rope with a length of 15, with a ball on the end, that went a certain amount of degrees, how far did the ball travel? you have to do 30pie (pieD=circumference) to get the circumference, then multiply that by the degree/360.</p>

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<p>ok thanks.</p>