Multivariable CalculusMediumCurves & Motion ShareCurves & Motion · Medium problemA particle moves along r(t)=(t2,2t,lnt)\mathbf r(t) = (t^2, 2t, \ln t)r(t)=(t2,2t,lnt). Find its speed at t=1t = 1t=1.Check Show answer Walk through it step by step Practice more like this Review this concept