### Home > CCA > Chapter 5 > Lesson 5.1.3 > Problem5-35

5-35.

Look back at the data given in problem 5-18 that describes the rebound ratio for an official tennis ball. Suppose you drop such a tennis ball from an initial height of 10 feet. Homework Help ✎

1. How high would it rebound after the first bounce?

Find the rebound ratio by dividing the rebound by the initial height.

$\frac{111}{200}=0.555$

Multiply the new initial height by the ratio.

10 · 0.555

5.55 ft

2. How high would it rebound after the second bounce?

Multiply the initial height by the rebound ratio twice:

(10)(0.555)(0.555) = (10)(0.555)2 = 3.08025 feet

3. How high would it rebound after the fifth bounce?

• Remember that the initial height is 10 feet and the rebound ratio is 0.555.