- #1

anonymous812

- 10

- 0

## Homework Statement

As shown, a pole is subjected to three forces: F, P, and T. The force F expressed in Cartesian vector form is F=[5 i+7 j+6 k] N. Force P has magnitude 7.48 N and acts in the direction given by these direction angles: α=143∘, β=57.7∘, and γ=74.5∘ to the x, y, and z axes, respectively. Force T lies within the yz plane, its direction is given by the 3-4-5 triangle shown, and its magnitude is 14 N.

Determine the components of P in the i, j, and k directions.

## Homework Equations

A_x=Acos(α)

cos^2(α)+cos^2(β)+cos^2(λ)=1

## The Attempt at a Solution

Honestly, I'm very confused as to how to approach this problem. I was under the impression that the x component was 0, y component was 8.40 and the z component was 11.2. I solved these by making a 2D plane from the P vector into a 3-4-5 right triangle. 3 on y, 4 on z, and 5 as the hyp.

I would really appreciate a better explanation of how to approach this question..I think I'm making it more difficult than it is.

Thank you!