The forces 20 N, 30 N, 40 N, and 60 N are acting at one of the angular points of a regular pentagon

 

The forces 20 N, 30 N, 40 N, and 60 N are acting at one of the angular points of a regular pentagon, towards the other five angular points, taken in order. Find the magnitude and direction of the resultant force.

Solution:

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