Post a New Question

trig

posted by on .

Write an equation for simple harmonic motion, given that the amplitude equals 4 inches and the period equals 2 seconds and the max displacement occurs when t=0. answers: y=4sin pi t, y=4cos pi t, y=4cos t, y=4sin2 pi t

  • trig - ,

    when t=0 , all answers with sin are zero
    all answers with cosine are 4, so we eliminate the sine answers

    period of a sine or cosine function is 2π/k
    but we are told:
    2π/k = 2
    k = π
    so it must be y = 4cos πt

Answer This Question

First Name:
School Subject:
Answer:

Related Questions

More Related Questions

Post a New Question