Question

Falling Ball Using calculus, it can be shown that if a ball is
thrown upward with an initial velocity of 16 ft/s from the top
of a building 128 ft high, then its height h above the ground t
seconds later will be

89. Falling Ball Using calculus, it can be shown that if a ball is
thrown upward with an initial velocity of 16 ft/s from the top
of a building 128 ft high, then its height h above the ground t
seconds later will be
h = 128 + 161 – 161²
During what time interval will the ball be at least 32 ft above
the ground?
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Transcribed Image Text

89. Falling Ball Using calculus, it can be shown that if a ball is thrown upward with an initial velocity of 16 ft/s from the top of a building 128 ft high, then its height h above the ground t seconds later will be h = 128 + 161 – 161² During what time interval will the ball be at least 32 ft above the ground?