Ответ:
0.3 c
Объяснение:
T=1.8 c t=?
===
x=A/2
x=A*cos(ω*t)
ω=2*π/T=2*π/1.8=π/0.9 рад/с
cos(π*t/0.9)=0.5
π*t/0.9=π/3
t=0.3 c
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Verified answer
Ответ:
0.3 c
Объяснение:
T=1.8 c t=?
===
x=A/2
x=A*cos(ω*t)
ω=2*π/T=2*π/1.8=π/0.9 рад/с
cos(π*t/0.9)=0.5
π*t/0.9=π/3
t=0.3 c
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