Chapter 12 - Vectors and Matrices - 12.3 Applications of Vectors - Exercises and Problems for Section 12.3 - Exercises and Problems - Page 514: 5

$$(5, 6,7,8,9,10)$$

To add two vectors, add their components. This yields: $$\vec{K}=\dfrac{\overrightarrow{N}}{3}+ \dfrac{2\overrightarrow{N}}{3}\\=\dfrac{(5,6,7,8,9,10)}{3}+\dfrac{ 2(5,6,7,8,9,10)}{3} \\=(\dfrac{5+10}{3}, \dfrac{6+12}{3}, \dfrac{7+14}{3}, \dfrac{8+16}{3}, \dfrac{9+18}{3}, \dfrac{10+20}{3})\\=(5, 6,7,8,9,10)$$