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A toy rocket is launched from a platform 4.9 meters above the ground in such a way that its​ height, h​ (in meters) after t seconds is given by the equation H= -4.9t^2+ 33.6t+ 4.9. How long will it take for the rocket to hit the​ ground?A toy rocket is launched from a platform meters above the ground in such a way that its​ height, h​ (in meters) after t seconds is given by the equation . How long will it take for the rocket to hit the​ ground?

Respuesta :

nawelpalepka

Answer:

So H have to equale to 0

and [tex]t> 0[/tex]

[tex]-4,9t^2+33,6t+4,9=0\\\Delta=33,6^2+4*4,9*4,9=1225\\\sqrt{\Delta }=35\\t=\frac{-33,6-35}{2*(-4,9)} =14s[/tex]

Step-by-step explanation:

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