5-point star resultant force question

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Homework Help Overview

The discussion revolves around a problem involving the resultant force of a 5-point star, specifically focusing on converting forces into their horizontal and vertical components. The original poster mentions having limited information about the angles involved, except for one force acting straight down.

Discussion Character

  • Exploratory, Assumption checking

Approaches and Questions Raised

  • Participants discuss the need to determine the angles between the forces and their orientation with respect to the positive x-axis. There is an emphasis on understanding the geometric properties of the star shape.

Discussion Status

The conversation includes attempts to clarify the angles between the forces and acknowledges that the star's uniformity implies equal angles between adjacent forces. Some guidance has been offered regarding the sum of angles, but no consensus has been reached on the specific calculations or methods to proceed.

Contextual Notes

There is a noted lack of specific angle measurements apart from the downward force, which may impact the ability to fully resolve the components of the forces.

jfletch
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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.
 

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jfletch said:
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
 

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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.
 
Thanks for the help.
 

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