Multivariable CalculusEasyCurves & Motion ShareCurves & Motion · Easy problemFind the speed at t=0t = 0t=0 of a particle with position r(t)=(et, e−t, 2 t)\mathbf r(t) = \left(e^{t},\ e^{-t},\ \sqrt{2}\,t\right)r(t)=(et, e−t, 2t).Check Show answer Walk through it step by step Practice more like this Review this concept