A ball is thrown downward from a window in a tall building. Its position at time t in seconds is s = 16t^ + 32t, where s is in feet. How long {to the nearest tenth) will it take the
ball to fall 87 feet?
1
Expert's answer
2012-12-11T09:25:23-0500
Let's consider the following equation:
16t² + 32t = 87,
or
16t² + 32t - 87 = 0.
This is a quadratic equation and its solutions are
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