Φ(t) = 0.5*t^2.7 +0.7*t^3.4 ω(t) = φ'(t) = (0.5*t^2.7 +0.7*t^3.4)' = 0.5*2.7*t^1.7+0.7*3.4*t^2.4 = 1.35*t^1.7+ 2.38*t^2.4 ω(1.4) = 1.35*1.77+2.38*2.24 = 7.72 рад в сек