Conceptual question on transitional and rotational equilibrium

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For an object in translational equilibrium, the vector sum of the forces must equal zero, confirming that option 1 is correct. The magnitudes of the three forces do not need to be equal, which makes option 2 incorrect. Additionally, the forces do not have to be parallel, so option 3 is also not necessary for translational equilibrium. The discussion emphasizes that only the vector sum condition is essential for equilibrium. Understanding these principles is crucial for solving related physics problems.
xregina12
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3 forces act on an object. If the object is in translational equilibrium, which of the following must be true?
1. the vector sum of the forces =0
2. the magnitude of the 3 forces must be equal
3. the 3 forces must be parallel


would the answer be just 1? I don't think 2 is true because the forces can be unequal but the net force needs to be = 0. And I don't know how what's stated in choice 3 must necessarily contribute to translational equilibirum. Thanks for any imput.
 
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Hi xregina12! :smile:
xregina12 said:
3 forces act on an object. If the object is in translational equilibrium, which of the following must be true?
1. the vector sum of the forces =0
2. the magnitude of the 3 forces must be equal
3. the 3 forces must be parallel
…
would the answer be just 1?

Yup! :biggrin:

(Don't worry … you know they put in extra wrong answers just to confuse you :wink:)​
 
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