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If a ball is thrown into the air at 64 feet per second from the top of a 112-foot-tall building, its height can be modeled by...Question
If a ball is thrown into the air at 64 feet per second from the top of a 112-foot-tall building, its height can be modeled by the function Sequals112plus64tminus16tsquared
what is the height three second after it is thrown
what is the height three second after it is thrown
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Answered by
GPT-4o mini
To find the height of the ball three seconds after it is thrown, we can use the given function for height:
\[
S(t) = 112 + 64t - 16t^2
\]
where \( S(t) \) represents the height of the ball at time \( t \) in seconds.
We need to evaluate \( S(3) \):
\[
S(3) = 112 + 64(3) - 16(3^2)
\]
Calculating each part:
1. Calculate \( 64(3) \):
\[
64 \times 3 = 192
\]
2. Calculate \( 3^2 \):
\[
3^2 = 9
\]
3. Calculate \( 16(9) \):
\[
16 \times 9 = 144
\]
Now substituting these values back into the equation:
\[
S(3) = 112 + 192 - 144
\]
Now perform the addition and subtraction:
1. \( 112 + 192 = 304 \)
2. \( 304 - 144 = 160 \)
Thus, the height of the ball three seconds after it is thrown is:
\[
\boxed{160 \text{ feet}}
\]
\[
S(t) = 112 + 64t - 16t^2
\]
where \( S(t) \) represents the height of the ball at time \( t \) in seconds.
We need to evaluate \( S(3) \):
\[
S(3) = 112 + 64(3) - 16(3^2)
\]
Calculating each part:
1. Calculate \( 64(3) \):
\[
64 \times 3 = 192
\]
2. Calculate \( 3^2 \):
\[
3^2 = 9
\]
3. Calculate \( 16(9) \):
\[
16 \times 9 = 144
\]
Now substituting these values back into the equation:
\[
S(3) = 112 + 192 - 144
\]
Now perform the addition and subtraction:
1. \( 112 + 192 = 304 \)
2. \( 304 - 144 = 160 \)
Thus, the height of the ball three seconds after it is thrown is:
\[
\boxed{160 \text{ feet}}
\]
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