What is the Moment Produced by a Force at the Origin?

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Homework Help Overview

The discussion revolves around calculating the moment produced by a force acting at a specific point in a two-dimensional space, specifically using the vector cross product. The force is given in vector form, and its position relative to the origin is specified.

Discussion Character

  • Exploratory, Mathematical reasoning, Assumption checking

Approaches and Questions Raised

  • Participants discuss the application of the vector cross product and question the use of a single vector in the calculation. There is an exploration of the necessary components involved in determining the moment.

Discussion Status

The discussion is ongoing, with participants attempting to clarify the use of vectors in the context of the problem. Some guidance has been offered regarding the relationship between the position vector and the force vector, but no consensus has been reached on the approach to take.

Contextual Notes

There appears to be some confusion regarding the application of the cross product and the vectors involved, indicating a need for further clarification on the definitions and components necessary for the calculation.

khutch2212
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F = 5i + 3j Newtons acts 3 m to the right of the origin (x is horizontal and y is vertical). What moment does this force produce about the origin? Use the vector cross product.
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OK, show us what you have tried.
 
I really don't know where to start, b/c I don't understand how I am suppost to use the cross product with one vector.
 
Who says you have only one vector? Remember, a vector has magnitude and direction.
 
Does this help?

[itex]\bar{M}_{o} = \bar{R}[/itex] X [itex]\bar{F}[/itex]
 

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