Milan1025
18.03.2020 •
Mathematics
A volleyball player serves the ball from a height of 6.5 feet above the ground with an initial vertical velocity of 21 feet per second. Which function models the height h (in feet) of the ball t seconds after it is served?
A) h = 21t - t^2 + 6.5
B) h = 16t^2 + 6.5
C) h = 16t^2 + 21t + 6.5
D) h = 6.5 + 21t 16t^2
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Ответ:
Option D.
Step-by-step explanation:
we know that
If air resistance is ignored, the height h (in feet) of the ball t seconds after it is served is given by
where
g is the acceleration due to gravity which on earth is approximately equal to 32 feet / sec^2
V_0 is the initial velocity (when t = 0 )
H_0 is the initial height (when t = 0)
In this problem we have
substitute the given values
Rewrite
Ответ:
the pond because the pond have a fractional number