Whats 600 divided by 4
2 answers:
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Answer:
<h2>a. 8 seconds.</h2><h2>b. 1 second and 7 seconds.</h2><h2>c. 4 seconds.</h2><h2>d. 256 feet.</h2>Step-by-step explanation:
The given function is
The image attached shows the trajectory of the rocket in a height-time graph. Notice that the maxium point reached is (4, 256), which means after 4 seconds, the rocket has a maximum height of 256 feet. (c) and (d)
Additionally, a parabola is symmetrical, which means it takes the same time going up or down, therefore the rocket reaches the ground after 8 seconds. (a)
Now, when the rocket is 112 feet above the ground, we have
Where we need to solve for
Using a calculator, we have the solutions and
, which means after 1 second and 7 second, the rocket is 112 feet above the ground. (b)
