In a Punkin’ Chunkin’ contest, the height (in feet)
of shots from one pumpkin cannon is given by the
function h(t) = -16(t - 5)2 + 425. The height is
in feet above the ground and the time is in seconds
after the pumpkin leaves the cannon. Show how to
use this function to answer questions about the
height of the flying pumpkin.
a. At what height is the pumpkin released from
the “chunker”?
b. At what time will the pumpkin hit the ground?
c. At what time does the pumpkin reach its
maximum height and what is that height?

Question

24-10-2014
Mathematics

Answered

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In a Punkin’ Chunkin’ contest, the height (in feet)
of shots from one pumpkin cannon is given by the
function h(t) = -16(t - 5)2 + 425. The height is
in feet above the ground and the time is in seconds
after the pumpkin leaves the cannon. Show how to
use this function to answer questions about the
height of the flying pumpkin.
a. At what height is the pumpkin released from
the “chunker”?
b. At what time will the pumpkin hit the ground?
c. At what time does the pumpkin reach its
maximum height and what is that height?

Sagot :

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