Question

Study the vector diagram.

A right triangle with base labeled Vector J = 6, the height labeled Vector K = unknown and the hypotenuse labeled Vector L = 10 meters.

What is the magnitude of vector K?

8 m
16 m
60 m
136 m

Answer 1

Use the Pythagorean theorem: K = sqrt(L^2 − J^2) = sqrt(10^2 − 6^2) = sqrt(100 − 36) = sqrt(64) = 8 m.

Answer: 8 m.