Помогите пожалуйста!
X (t) = t^3 - 2t^2 + 5 физический смысл производной x ' (t) = v (t) v ' (t) =a (t) x '' (t) = a (t) x ' (t) = v (t) = 3t^2 - 4t v (2) = 3*4 - 4*2 = 12 - 8 = 4 м/с x '' (t) = v ' (t) = a(t) = 6t - 4 a(2) = 6*2 - 4 = 12 - 4 = 8 м/с^2
X(t)=t^3-2t^2+5; V(t)=X'(t)=3t^2-4t; V(2)=3•4-4•2=12-8=4; A(t)=V'(t)=6t-4; A(2)=6•2-4=12-4=8;