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The Formula s(t)=−9cos⁡π2ts(t)=-9 \cos \frac{\pi}{2} t Gives the Height (In Inches) of a Weight Attached to Inches)

Question 87

Short Answer

the formula s(t)=−9cos⁡π2ts(t)=-9 \cos \frac{\pi}{2} t gives the height (in inches) of a weight attached to a spring after tt seconds.
-When does the weight reach its maximum height if t≥0t \geq 0 ?

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