You Drop A Rock Off A Bridge. The Rock's Height, H (in Feet Above The Water), After T Seconds Is Modeled By H = -16t^2 + 554. What Is The Height Of The Rock After 3 Seconds?

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Oddman Profile
Oddman answered
Put 3 where t is in the equation and evaluate.
H = -16*3^2 + 554
  = -16*9 + 554
  = -144 + 554
  = 410
After 3 seconds, the rock is 410 feet above the water.
The rock will hit the water after 5.88 seconds. You won't hear the splash for about another 1/2 second.

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