APFIVE Acceleration from Position Function
The position of a particle moving along the x-axis is given by $$x(t) = 4\sin(\pi t)$$, where $$x$$ is in meters and $$t$$ is in seconds. What is the instantaneous acceleration of the particle at $$t = 0.25$$ s?
A
$$-4 m/s²$$
B
$$4\pi\ \text{m/s}^2$$
C
0 m/s²
D
$$-2\pi^2\sqrt{2}\ \text{m/s}^2$$
Question Leaderboard
| Rank | |||||
|---|---|---|---|---|---|
| #1 | dinhhoa | 1 | 3 | 0m 00s | 80 |
| #2 | mamix1038 | 0 | 2 | 0m 12s | -32 |
| #3 | ethan.yh.cui | 1 | 1 | 3m 21s | -101 |
| #4 | aibekn386 | 1 | 3 | 3m 56s | -156 |
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