anonymous
  • anonymous
If an object is projected upward with an initial velocity of 124ft per second, its height 'h' after 't' seconds is h=-16t^2 +124t find the height of the object after 2 seconds.
Algebra
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SOLVED
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schrodinger
  • schrodinger
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whpalmer4
  • whpalmer4
You have a formula for the height at any desired time: \[h(t) = -16t^2 + 124t\]All you need to do to find the height after 2 seconds is plug in \(t = 2 \text{ seconds}\) and turn the crank...
anonymous
  • anonymous
so its h(2)=-16(2)^2+124(2) right??
whpalmer4
  • whpalmer4
yes, and that equals?

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anonymous
  • anonymous
my answer was 184
whpalmer4
  • whpalmer4
Yes, 184 ft is correct as the attached diagram shows.
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