уравнение скорости: V(t)=X'(t)=-2,5*pi*cospi*t=-7,85*cospi*t
Vm=7,85 м/с
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уравнение скорости: V(t)=X'(t)=-2,5*pi*cospi*t=-7,85*cospi*t
Vm=7,85 м/с