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5. 16t2 gives the distance in feet a free-falling object falls in t seconds.
16t2 + 10t gives the distance an object falls in t seconds when it is thrown down with an initial velocity of 10 feet per second. Use this polynomials to:

a. Find how far a wallet dropped from the 86th-floor observatory of the Empire State Building will fall in 5 seconds.

  • algebra -

    d = 16t^2.
    t = 5 seconds.
    d is in feet.

  • algebra -

    16t^2 + 86t=16 x 5^2 +86 x 5=830

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