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Can someone help me? ​

Can someone help me? ​-example-1
User KiRach
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1 Answer

6 votes

9514 1404 393

Answer:

15 seconds

Explanation:

Put the given heights in the equation and solve for t.

h(t) = -16t² +3600

0 = -16t² +3600 . . . . h(t) = 0 at ground level

16t² = 3600 . . . . . . . add 16t²

t² = 3600/16 = (60/4)² = 15² . . . . . divide by 16

t = 15 . . . . . . . . . . . . take the square root

It will take 15 seconds for the phone to hit the ground.

User Rwfbc
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