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an object dropped from a height of 210ft will fall according to the equation h(t) =210-16t^2. how long will it take the object to reach the ground

Respuesta :

Answer:

[tex]\sqrt{210/16}[/tex]  

Step-by-step explanation:

By saying reach the ground, it means the altitude w[tex]\sqrt{}[/tex]ill be zero, so the equation will be: 210 - 16t^2 = 0

210 = 16t^2, t = [tex]\sqrt{210/16}[/tex]  

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