### Home > CCA > Chapter 7 > Lesson 7.1.1 > Problem7-10

7-10.
1. If a ball is dropped from 160 cm and rebounds to 120 cm on the first bounce, how high will the ball be: Homework Help ✎

1. On the 2nd bounce?

2. On the 5th bounce?

3. On the nth bounce?

What is the ratio between the rebound height and the original height?

$\text{The rebound ratio is \frac{120\,cm}{160\,cm}=0.75.}$

≈ 37.97 cm

$\textit{t}(\textit{n})=160(0.75)^\textit{n}$