![subject](/tpl/images/cats/mat.png)
Mathematics, 03.02.2021 06:40 jwyapo4
A firecracker is shot upward off a balcony that is 10 feet above the ground with an initial velocity of v feet per second. The firecracker reaches a maximum height of 30.25 feet at 1.125 seconds after being shot upward. The formula for the vertical motion of an object is
![h(t) = \frac{1}{2} at {}^{2} + vt + s](/tpl/images/2116/9985/6a5a9.png)
where the gravitational constant, a, is -32 feet per second, and h(t) is the height in feet modeled as a function of time, t.
The initial velocity of the firecracker is
A. 12
B. 27
C. 36
feet per second
The time when the firecracker reaches the ground is
A. 1.25
B. 2
C. 2.5
seconds
The correct answers are C and C I just need to understand why.
Thanks!
![ansver](/tpl/images/cats/User.png)
Answers: 2
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Other questions on the subject: Mathematics
![image](/tpl/images/cats/mat.png)
![image](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 15:30, lizzyhearts
Angel entered a triathlon (a three-part race). he swam 1 mile, rode his bike 30 miles, and ran 10 miles. how far did he go altogether? a. 11 miles b. 123 miles c. 41 miles d. 40 miles
Answers: 1
![image](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 16:00, pringleosmond
65 8 7 4 5 6 8 4 3 2 1 9 5 6 4 2 1 6 5 1 5 1 3 2 3 5 multiply the third number in the first row by the seventh number in the third row. add this result to the fifth number in the second row. add to this total ten times the fourth number in the third row. subtract the eighth number in the first row from the result.
Answers: 3
![image](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 18:00, madisonvinson0
Stephen thublin invests $1,000,000 in a 45-day certificate of deposit with 6.55% interest. what is the total interest income from the investment?
Answers: 1
You know the right answer?
A firecracker is shot upward off a balcony that is 10 feet above the ground with an initial velocity...
Questions in other subjects:
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/istoriya.png)
History, 28.11.2019 04:31
![Konu](/tpl/images/cats/health.png)
![Konu](/tpl/images/cats/geografiya.png)
Geography, 28.11.2019 04:31
![Konu](/tpl/images/cats/en.png)
![Konu](/tpl/images/cats/ekonomika.png)
![Konu](/tpl/images/cats/en.png)
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 28.11.2019 04:31
![Konu](/tpl/images/cats/mat.png)
Mathematics, 28.11.2019 04:31