a) T = 1/f = 1/0.4 = 2.5 s
b) ω = 2·π/T = 2·π/2.5 = 0.8·π rad/s
Vmax = A·ω ---> A = Vmax/ω = 0.2/(0.8·π) =1/(4·π) = 0.0796 m ≈ 80 mm
c) amax = A·ω² = (Vmax/ω)·ω² = Vmax·ω = 0.2·0.8·π = 0.503 m/s²
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a) T = 1/f = 1/0.4 = 2.5 s
b) ω = 2·π/T = 2·π/2.5 = 0.8·π rad/s
Vmax = A·ω ---> A = Vmax/ω = 0.2/(0.8·π) =1/(4·π) = 0.0796 m ≈ 80 mm
c) amax = A·ω² = (Vmax/ω)·ω² = Vmax·ω = 0.2·0.8·π = 0.503 m/s²