at a unit-speed regular parametrised curve 3: (-7, 7)→ R² with T, N) has constant curvature k> 0. Show that its tangent vector n T(s) = cos(Ks) a + sin(Ks) b, for some a, b e R2.
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- A particle moves along a circular path over a horizontal xy coordinate system, at constant speed. At time t1 = 4.90 s, it is at point (4.60 m, 5.00 m) with velocity (2.00 m/s)ĵ and acceleration in the positive x direction. At time t2 = 13.6 s, it has velocity (–2.00 m/s)î and acceleration in the positive y direction. What are the x and y coordinates of the center of the circular path? Assume at both times that the particle is on the same orbit.. Sketch the curve parametrized by r(t) = (ltl + t, ltl - t)Show that the ellipse x = a cos t, y = b sin t, a> b>0, has its largest curvature on its major axis and its smallest curvature on its minor axis.
- If a parametrized curve is given by: r⃗ (t)=⟨2t^3,10ln(t),5t^2+9t⟩ At t==2, the position vector is ⟨16,10ln(2),38⟩ Find the curvature at t=2, K(2)Find the curvature of a superellipse defined by the parametric equations x(t)=acosnt,y(t)=bsinnt,where a,b and n are positive real numbers.Find a point on the ellipsoid x2 + 4y2 + z2 = 9 where the tangent plane is perpendicular to the line with parametric equations x = 2 − 4t, y = 1 + 8t, and z = 3 − 2t
- The Cornu spiral is the plane curve r(t) = ⟨x(t), y(t)⟩, wherex(t) =Z t0sin(u2/2) du, y(t) =Z t0cos(u2/2) duVerify that κ(t) = |t|. Since the curvature increases linearly, the Cornuspiral is used in highway design to create transitions between straight andcurved road segments.Find k (curvature) and t (torsion) for curve C represented by F(t)=(e^t,-e^t,(2t)^1/2)