Answered

A ball is thrown straight up into the air. The table shows the data collected over time [tex]\( t \)[/tex] seconds, where [tex]\( h(t) \)[/tex] is the height of the ball in feet.

Height of Ball over Time
[tex]\[
\begin{tabular}{|c|c|}
\hline
$t$ & $h(t)$ \\
\hline
0 & 0 \\
\hline
1 & 64 \\
\hline
2 & 96 \\
\hline
3 & 96 \\
\hline
4 & 64 \\
\hline
5 & 0 \\
\hline
\end{tabular}
\][/tex]

Which statement is true?

A. The initial height of the ball is 96 feet.

B. The ball will hit the ground between 2 and 3 seconds after it was thrown.

C. The maximum height of the ball must be 96 feet.

D. The maximum height of the ball was reached 2.5 seconds after it was thrown.



Answer :

Let's go through the statements one by one using the data provided:

1. The initial height of the ball is 96 feet.
- Referring to the table, at [tex]\( t = 0 \)[/tex], the height [tex]\( h(t) \)[/tex] is 0 feet. Therefore, this statement is false.

2. The ball will hit the ground between 2 and 3 seconds after it was thrown.
- From the table, at [tex]\( t = 5 \)[/tex], [tex]\( h(t) \)[/tex] is 0 feet, meaning the ball hits the ground at 5 seconds, not between 2 and 3 seconds. Thus, this statement is false.

3. The maximum height of the ball must be 96 feet.
- The table shows that the maximum height [tex]\( h(t) \)[/tex] of 96 feet occurs at [tex]\( t = 2 \)[/tex] and [tex]\( t = 3 \)[/tex]. Therefore, this statement is true.

4. The maximum height of the ball was reached 2.5 seconds after it was thrown.
- According to the table, the ball reaches its maximum height at [tex]\( t = 2 \)[/tex] and remains at that height until [tex]\( t = 3 \)[/tex]. There is no indication that the exact moment of maximum height occurs at [tex]\( t = 2.5 \)[/tex]. Hence, this statement is false.

Based on the analysis:

- Statement 1: False
- Statement 2: False
- Statement 3: True
- Statement 4: False

The true statement is: The maximum height of the ball must be 96 feet.