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If an object is dropped from a height of 144 ft, the function h(t) = –16t² + 144 gives the height of the object after t seconds. When will the object hit the ground? (1 point)
1.5 s
3 s
6 s
9 s

Respuesta :

meerkat18
h(t) = -16t² + 144

When will the object hit the ground? This means that the height will equal to 0.

h(t) = 0
0 = -16t² + 144
16t² = 144
t² = 144/16
t² = 9
√t² = √9
t = 3

The object will hit the ground after 3 seconds.

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