nns91
Mar2-09, 08:58 PM
1. The problem statement, all variables and given/known data
Suppose n is normal to a plane and v is parallel to the plane. Describe how you would find a vector u that is both perpendicular to v and parallel to the plane.
2. Relevant equations
Cross product, dot product
3. The attempt at a solution
Since u is perpendicular to v, u dot v = 0. U is also parallel to the plane so u will be perpendicular to n, so u dot n=0.
How would I do the rest of it ?
Suppose n is normal to a plane and v is parallel to the plane. Describe how you would find a vector u that is both perpendicular to v and parallel to the plane.
2. Relevant equations
Cross product, dot product
3. The attempt at a solution
Since u is perpendicular to v, u dot v = 0. U is also parallel to the plane so u will be perpendicular to n, so u dot n=0.
How would I do the rest of it ?