Question

The x component of vector A is 36 cm and the Y component is 36 cm.what is the angle made by A with X axis?

Answer 1

Answer:

45°

Explanation:

Here the direction cosines of the vector are

Ax = 36 , Ay= 36

also ,

cos(x) = Ax ÷ [√(Ax²+ Ay²)]

i.e., cos(x) = 36 ÷ [√(36²+36²)]

cos(x) = 36 ÷ 36√2

cos(x) = 1/√2

hence x = 45°