Calculating Forces on a Block with Attached String

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Homework Help Overview

The discussion revolves around calculating the forces acting on a block that is at rest on a horizontal surface, with a specific focus on the effects of an attached vertical string exerting an upward force. The problem involves understanding the balance of forces, including the weight of the block and the tension in the string.

Discussion Character

  • Exploratory, Assumption checking, Problem interpretation

Approaches and Questions Raised

  • Participants discuss the meaning of the attached vertical string and its implications for the forces acting on the block. There is an exploration of the downward force due to the block's weight and the upward tension from the string, with some participants questioning the setup and the calculations involved.

Discussion Status

The discussion includes various interpretations of the problem, with some participants expressing confidence in their understanding of the forces involved. While there is a suggestion of a possible answer regarding the net force on the block, there is no explicit consensus on the final outcome, and the conversion question remains unaddressed.

Contextual Notes

One participant raises a question about converting Newtons to pounds, indicating a potential gap in knowledge regarding unit conversion that may affect their understanding of the problem.

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A block with a weight of 3.0N is at rest on a horizontal surface. A 1.0N upward force is being applied to the block by means of an attached vertical string. What are the magnitude and the direction of the force of the block on the horizontal surface? I was wondering what it meant by the attached vertical string, is the string attached to the top of the block and then to a ceiling?
 
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mike_24 said:
I was wondering what it meant by the attached vertical string, is the string attached to the top of the block and then to a ceiling?

Yes, that makes sense.
 
This seems like a very easy problem, if I'm approaching it properly. You would have your 3.0N down as your mg and the T would be 1.0N up. Would that mean that the megnitude would be 2.0N downward as a final answer?
 
Newtons to Pounds

I was just wondering how you convert Newtons to pounds
If anyone knows this it would be muchly appreciated
Thanks
 
mike_24 said:
This seems like a very easy problem, if I'm approaching it properly. You would have your 3.0N down as your mg and the T would be 1.0N up. Would that mean that the megnitude would be 2.0N downward as a final answer?

Yes, that is the correct answer.

Sadly, I can't help about the conversion question, but I'm 100% sure that you could google-up an answer in any time.
 

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