- #1

schyuler2

- 8

- 0

## Homework Statement

A 20kg block is held in equilibrium by two massless cords, A, B. A is attached to the wall and B is attached to the ceiling. Find the magnitudes of the tensions of the cords.

Visual: http://i758.photobucket.com/albums/xx228/schuyler2_va/untitled.jpg?t=1260816320

## Homework Equations

[tex]\Sigma[/tex] Forces = m*a

Normal force = mg(cos [tex]\theta[/tex])

## The Attempt at a Solution

[tex]\Sigma[/tex] Forces = Tension of A + Tension of B + W + N

Tensions+Weight = ma

N = mg(cos [tex]theta[/tex])

W = 0

Tension A =?

Tension B=?

^not sure how to find the magnitudes