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Help asap please I need to get to my exam!!

Help asap please I need to get to my exam!!
asked 155k views
3 votes
Help asap please I need to get to my exam!!

Help asap please I need to get to my exam!!-example-1
asked
User IngisKahn
by
7.2k points

1 Answer

5 votes

Answer:

4 seconds

Explanation:


h(t)=-16t^2+256\\0=-16t^2+256\\16t^2=256\\t^2=16\\t=4

Therefore, it will take the pebble 4 seconds to hit the ground.

answered
User Kevin Horgan
by
8.0k points
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