Answer to Question #314660 in Mechanics | Relativity for Ndilloh

Question

Find the unit tangent vector, the unit normal vector, the curvature and the radius of curvature of the circle x= a cos theta, y= a sin theta, z=0 at point with parameter theta.

Answer 1

Answer

You can find normal to a vector by application of dot product also. As we know if dot product is zero then two vectors are perpendicular (if none of them is a null vector). For instance, you have a vector 2i+3j+3k and you have to find the vector normal to it.