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If an object is projected upward with an initial velocity of 128 ft per​ sec, its height h after t seconds is h equals negative 16 t squared plus 128 t. Find the height of the object after 2 seconds.

Respuesta :

The height of the object after 2 seconds will be 192 feet.

Explanation

The height after [tex]t[/tex] seconds is given by....

[tex]h= -16t^2+128t[/tex]

Now for finding the height of the object after 2 seconds, we need to plug [tex]t=2[/tex] into the above equation. So we will get.....

[tex]h=-16(2)^2 +128(2)\\ \\ h=-64+256=192[/tex]

So, the height of the object after 2 seconds will be 192 feet.

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