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2 years ago

40 points.

Mathematics

1 answer:

viva [34]2 years ago

3 0

Answer:

B. a(t) = -3π²cos(πt)

Step-by-step explanation:

Acceleration is the second derivative of the position. Here, the second derivative of the cosine function is ...

d²(cos(πt))/dt²= -π²cos(πt)

Of course, the second derivative of the constant is zero. When we consider the multiplier of 3, we have ...

a(t) = x''(t) = -3π²cos(πt) . . . . . . . matches choice B

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