Calculating the net force acting on object in diagram

AI Thread Summary
The net force acting on the object was calculated using the cosine law, resulting in a force of 32.8 N at an angle of 72° east. The calculations involved determining the resultant force from two vectors, 32.0 N and 38.0 N, with an angle of 55° between them. The user requested verification of their answer and referenced a previous thread for additional context. The calculations appear to follow the correct methodology for resolving forces. Overall, the user seeks confirmation on the accuracy of their net force calculation.
Evangeline101
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Homework Statement


Calculate the net force acting on each object in the following diagrams. Show your work.

upload_2016-5-4_15-14-44.png


Homework Equations


upload_2016-5-4_14-59-12.png

[/B]
upload_2016-5-4_14-59-33.png


The Attempt at a Solution


c2= a2 + b2 - 2abcosC
c = (a2 + b2 - 2abcosC) 1/2

c = [ (32.0 N)2 + (38.0 N)2 - 2 (32.0 N) x (38.0 N) cos 55° ] 1/2
c = 32.8 N

upload_2016-5-4_14-59-33.png


sinA/ 38.0 N = sin55° / 32.8 N

A= 72°

Fnet = 32.8 N [ N 72° E]

Can someone please check my answer and tell me if it is correct? Thanks.
 
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Okay, thanks for linking that thread.
 

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