APFIVE Velocity Decreasing Most Rapidly
The acceleration of a particle moving along the $$x$$-axis is given by $$a(t) = (t - 8)\sin t$$ for $$0 \leq t \leq 8$$. At what value of $$t$$ is the particle’s velocity decreasing most rapidly?
A
$$3.142$$
B
$$4.439$$
C
$$1.420$$
D
$$0$$
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