5-point star resultant force question

[jfletch]

Any help on where I start with this question. Need to convert each force into its horizontal and vertical components, but don't know any angles apart from the 70N force acting straight down.

 

[ehild]

Any help on where I start with this question. Need to convert each force into its horizontal and vertical components, but don't know any angles apart from the 70N force acting straight down.

The lines of the forces connect the vertices of a regular pentagon to the centre. What angle do they enclose with each other? What are their angles with respect to the positive x axis?

ehild

 

[voko]

Surely you can figure out the angles. The star is uniform, so the angle is the same between any two adjacent forces. And you know what the sum of all the angles is.

 

[jfletch]

Thanks for the help.