When Zakir threw a beach ball to his friend, its horizontal velocity changed as it traveled through the air. The relationship between the elapsed time, t, in seconds, since Zakir threw the ball, and its horizontal
velocity, V(t), in cm/s is modeled by the following function:
5
t
V(t) = = 4.
8
Complete the following sentence about the rate of change of the horizontal velocity of the ball.
Every second, the horizontal velocity of the ball
grows/shrinks v
by a factor of
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