Ashybear Ashybear

02-05-2017
Mathematics

contestada

If an object dropped from the height of 144 ft the function h(t)=-16t^2+144 gives the height of the object after t seconds. When will the object hit the ground?

Respuesta :

02-05-2017

3 seconds
0= -16t^2+144
-144/-16=9
9=t^2
Sq rt of 9 is 3

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