SOLUTION: I would really just appreciate if someone can guide me an the formulas to use. This is credit, and we havent done this chapter. Much appreciated...
A miniature rocket is launc
Question 277224: I would really just appreciate if someone can guide me an the formulas to use. This is credit, and we havent done this chapter. Much appreciated...
A miniature rocket is launched so that its height h in meters after t seconds is given by the equation h = -4.9t^2 + 19.6t + 10
a. draw a graph of the equation
b. how high is it after 3 sec?
c. what is the max height the rocket will attain?
d. How long after the launch will the rocket hit the ground? Found 2 solutions by Monarita, Alan3354:Answer by Monarita(1) (Show Source):
You can put this solution on YOUR website! A miniature rocket is launched so that its height h in meters after t seconds is given by the equation h = -4.9t^2 + 19.6t + 10
a. draw a graph of the equation
b. how high is it after 3 sec?
Sub 3 for t
h(3) = -4.9*9 + 19.6*3 + 10
= 24.7 meters
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c. what is the max height the rocket will attain?
Max height is at the vertex, t = -b/2a
t = -19.6/2*-4.9 = 2 seconds
h(2) = -19.6 + 39.2 + 10
h(2) = 29.6 meters max height
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d. How long after the launch will the rocket hit the ground?
It impacts at h = 0
-4.9t^2 + 19.6t + 10