# Homework Help: Crate on a cable statics question

1. Aug 28, 2010

### divineyang

1. The problem statement, all variables and given/known data
Please refer to the attachment.

2. Relevant equations
Sum of x and y forces = zero
Sum of moments about any point = zero

3. The attempt at a solution
By looking at the portion of the string under the crate, there are 3 forces acting on it, namely the two tensions at the side and the weight of the crate. Hence I deduce that the gravitational force of the crate acting on the string is the sum of the two vertical components of the tensions.

Can anyone tell me if I'm right or am I missing out on any forces?

#### Attached Files:

• ###### Crate on Cable.jpg
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Last edited: Aug 28, 2010
2. Aug 29, 2010

### Staff: Mentor

You are correct. Next you'll have to use a little trig to find the angle that the cables make.

3. Aug 29, 2010

### divineyang

oh i got the angle already, I was just confused as to whether there were any more forces acting on it. thanks for the clarification!