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A pineapple thrown upwards follows a one-dimensional trajectory given by:

$$y(t) = -(t – 5.40 s)^{2} + 25.0m$$

...where $t$ is given in seconds and $y(t)$ is in meters.

What is the pineapple's acceleration?

A

$-9.81 m/s^2$

B

$-2.00 m/s^2$

C

$-1.00 m/s^2$

D

$-0.50 m/s^2$

E

Cannot be determined

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