anonymous
  • anonymous
The function H(t) = -16t2 + vt + s shows the height H (t), in feet, of a projectile launched vertically from s feet above the ground after t seconds. The initial speed of the projectile is v feet per second. Part A: The projectile was launched from a height of 90 feet with an initial velocity of 50 feet per second. Create an equation to find the time taken by the projectile to fall on the ground. (2 points) Part B: What is the maximum height that the projectile will reach? Show your work. (2 points)
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
Part C: Another object moves in the air along the path of g(t) = 28 + 48.8t where g(t) is the height, in feet, of the object from the ground at time t seconds. Use a table to find the approximate solution to the equation H(t) = g(t), and explain what the solution represents in the context of the problem? [Use the function H(t) obtained in Part A, and estimate using integer values] (4 points) Part D: Do H(t) and g(t) intersect when the projectile is going up or down, and how do you know? (2 points)
anonymous
  • anonymous
Will give medal and fan!!! I need the answer ASAP!!!!!!!
anonymous
  • anonymous
Yes

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anonymous
  • anonymous
I do not understand how to do it.
anonymous
  • anonymous
Yeah
anonymous
  • anonymous
I only need help with C and D
SolomonZelman
  • SolomonZelman
For the height, you need to find the vertex (h,k) and the "k" (the y-coordinate) is going to be your height. (Provided that H(t) is the position function.) \((\)Note: we are not considering negative values of H(t). \()\)
SolomonZelman
  • SolomonZelman
Re-write the H(t) in a vertex form please.
anonymous
  • anonymous
Okay give me a sec.
anonymous
  • anonymous
Actually how do you do that idk how. Sorry I am really bad at math
SolomonZelman
  • SolomonZelman
do you know what a perfect square trinomial is?

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