Question

A^^\-> points in the -x direction with a magnitude of 21. What is the y component of A^^\->

Answer 1

Answer:

$A_y=-36.37^{\circ}$

Explanation:

Given that,

Vector A points in the -x direction with a magnitude of 21.

Let the x component is making an angle of 60 degrees with negative x axis. The x component of a vector is given by :

$A_x=A\ cos\theta$

$-21=A\ cos(60)$

$A=\dfrac{-21}{cos(60)}$

A = -42 units

The y component of a vector is given by :

$A_y=A\ sin\theta$

$A_y=-42\ sin(60)$

$A_y=-36.37^{\circ}$

So, the y component of vector A is (-36.37) degrees. Hence, this is the required solution.