What is the horizontal component of a 820 N force vector acting at an angle of 80 degrees counter clockwise from the negative vertical axis?

Question

What is the horizontal component of a 820 N force vector acting at an angle of 80 degrees counter clockwise from the negative vertical axis.

Answer 1

80° counterclockwise from the negative vertical axis is the same as (270 + 80)° counterclockwise from the positive x-axis.

 

F_x = Fcosθ

 

θ = (270 + 80)° = 350°

F = 820 N

 

F_x = 820cos350° N = ? N

 

Evaluate and get F_x in N.