t=60 c n=90 xo=0.02 м A=0.05 м x(t)=?
T=t/n
ω=2*π/T=2*π*n/t=3π
x(t)=xo+A*sin(ω*t)=0.02 + 0.05*sin(3*π*t)
или
0.02=0.05*sin(0+φ)
sinφ=0.4 φ=0.41 (радиан а не градусов)
x(t)=0.05*sin(3*π*t+0.41)
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Verified answer
t=60 c n=90 xo=0.02 м A=0.05 м x(t)=?
T=t/n
ω=2*π/T=2*π*n/t=3π
x(t)=xo+A*sin(ω*t)=0.02 + 0.05*sin(3*π*t)
или
0.02=0.05*sin(0+φ)
sinφ=0.4 φ=0.41 (радиан а не градусов)
x(t)=0.05*sin(3*π*t+0.41)
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