APFIVE Acceleration From Velocity
The velocity of a particle moving along a straight line is given by $$v(t) = 4t - 2e^{t/2}$$ for $$t \ge 0$$. For what value of $$t$$ is the acceleration of the particle zero?
A
$$2.386$$
B
$$2.772$$
C
$$3.545$$
D
$$3.159$$
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