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HELP ME PLEASEEEEEEEEEEEEEEEEEEEEEEEEEE!!!!!!!!!!!!!!!!!!!!

HELP ME PLEASEEEEEEEEEEEEEEEEEEEEEEEEEE!!!!!!!!!!!!!!!!!!!!-example-1

1 Answer

6 votes

Answer: 2

Explanation:

The object hits the ground when
h=0.


-16t^2 +128t+144=0\\\\t^2 -8t-12=0\\\\(t-2)(t-6)=0\\\\t=2, 6

However, if we consider the graph, since the height must initially be positive, we take the case where
t=2.

User Morten Hjort
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