Mathematics, 12.07.2019 07:00 naomicervero
The elasticity coefficient e of a ball relates the height r of its rebound to the height h from which it is dropped. you can use the function e = 
to find the elasticity coefficient. what is the elasticity coefficient of a tennis ball that rebounds 3 ft after it is dropped from a height of 3.5 feet? round to the nearest 100th.
Answers: 1
![\bf e=\sqrt{\cfrac{r}{h}}~~ \begin{cases} r=\stackrel{rebound}{height}\\ h=\stackrel{drop}{height}\\[-0.5em] \hrulefill\\ r=3\\ h=3.5 \end{cases}\implies e=\sqrt{\cfrac{3}{3.5}}\implies e\approx 0.92582\implies e=\stackrel{\textit{rounded up}}{0.93}](/tpl/images/0080/0778/0924f.png)
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