- #1

Femme_physics

Gold Member

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Okay, me and my friend have been working on this problem for a while and it just been a headache catalyst for us...your help is called upon, people of the internet.

A system of weights is in equilibrium.

Calculate the distance "s" where

WD = 5[N]

WF = 5 [N]

WE = 8 [N]

a = 4 [m]

Ignore radius of pulley

((The answer is 5.33 according to the book, and the clue is to do sum of all forces on Y axis...but nothing comes up to me))

http://img526.imageshack.us/img526/3186/71090239.jpg [Broken]

((The diagram is a little askew because of the scanjob it's supposed to be straight))

None provided.

My attempts led nowhere as we have 1 distance in meters, and the force that's applied on the string (in Newtons). We have no angle, no nothing! Is this even solvable? We're supposed to be studying basics of technical mechanics (sum of all moments/forces+sin/cos trignometry)...nothing too fancy... so if there is something too fancy it's probably out of our league..but let me know how to go about this please.

## Homework Statement

A system of weights is in equilibrium.

Calculate the distance "s" where

WD = 5[N]

WF = 5 [N]

WE = 8 [N]

a = 4 [m]

Ignore radius of pulley

((The answer is 5.33 according to the book, and the clue is to do sum of all forces on Y axis...but nothing comes up to me))

http://img526.imageshack.us/img526/3186/71090239.jpg [Broken]

((The diagram is a little askew because of the scanjob it's supposed to be straight))

## Homework Equations

None provided.

## The Attempt at a Solution

My attempts led nowhere as we have 1 distance in meters, and the force that's applied on the string (in Newtons). We have no angle, no nothing! Is this even solvable? We're supposed to be studying basics of technical mechanics (sum of all moments/forces+sin/cos trignometry)...nothing too fancy... so if there is something too fancy it's probably out of our league..but let me know how to go about this please.

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