Saved Bookmarks
| 1. |
THE COMPONENT OF VECTOR P=6i+2j-5k ALONG VECTOR Q3i-4j |
| Answer» P: 6 i + 2 j - 5 kvector Q: 3 i - 4 j u = unit VECTOR ALONG Q : (3 i - 4 j ) / √(3²+4²) = 3/5 i - 4/5 jmagnitude of the component of vector P along the vector Q: P = dot product of vector P and unit vector u or Q/|Q|. = (6 i + 2 j - 5 k) . (3/5 i - 4/5 j) = 18/5 - 8/5 = 2component of vector P along vector Q: 2 u = 6/5 i - 8/5 j | |