For a block in linear oscillator, x (0) = -8.50cm, v (0) = -0.920m/s, a (0) = +47.0m/s 2 . What are the angular frequency ω , the phase constant φ and amplitude x m of this system?
A.
ω = 13.5rad/s , ϕ = 155 o , x m = 0.094m
B.
ω = 23.5rad/s , ϕ = 155 o , x m = 0.094m
C.
ω = 23.5rad/s , ϕ = 55 o , x m = 0.094m
D.
ω = 23.5rad/s , ϕ = 155 o , x m = 0.94m