Connect with knowledgeable individuals and find the best answers at IDNLearn.com. Join our community to receive timely and reliable responses to your questions from knowledgeable professionals.
Answer:
Looks like you have:
a = -.324 cos 2.5 t
In this case ω^2 A = .324
ω = 2.5
f = ω / (2 * pi) = 2.5 / 6.28 = .40 / sec