The function $h$ estimates an object's height, in feet, above the gro…

The function

h

estimates an object's height, in feet, above the ground

t

seconds after the object is dropped, where

b

is a constant. The function estimates that the object is 2.56 feet above the ground when it is dropped at

t = 0

. How many seconds after being dropped does the function estimate the object will hit the ground?

0.4

2/5

0.40

.40

0.400

.400

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