一道大学物理题,求大神解答一下

2025-03-23 06:52:59
推荐回答(1个)
回答1:

ω = 2π ν = 12π rad/s
(1)φ = π/2
x = 0.03 cos(12π t + π/2)
(2)φ = π
x = 0.03 cos(12π t + π)