How do I calculate the normal force using vector components?

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Homework Help Overview

The discussion revolves around calculating the normal force (F_N) in the context of forces acting on an object on a ramp. Participants are revisiting concepts related to vector components and the relationship between different forces, particularly gravitational force (F_g) and normal force.

Discussion Character

  • Exploratory, Assumption checking, Conceptual clarification

Approaches and Questions Raised

  • Participants discuss the relationship between the normal force and gravitational force, with some attempting to clarify the direction and components of these forces. Questions arise regarding the calculation of the normal force and the role of vector components in this context.

Discussion Status

The discussion is ongoing, with participants exploring different interpretations of the forces involved. Some guidance has been offered regarding the absence of other forces acting against the normal force, but there is no explicit consensus on the calculation method for F_N.

Contextual Notes

One participant expresses uncertainty about the relevant equations and concepts, indicating a potential gap in foundational knowledge. There is also mention of a diagram that may aid in visualizing the problem, though its details are not provided in the discussion.

gigaubunntu
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Homework Statement



I know how to calculate F_act by adding F_N and F_g as vectors. But I completely forgot how to calculate F_N! We did forces a few months ago and I'm going over past tests. I'm stumped. I feel pretty dumb ATM.


Homework Equations



Unsure.

The Attempt at a Solution



I don't know where to go from here. I made you all a diagram:

fxbos.jpg
 
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There are no other forces in the direction opposite of your normal force vector into the ramp, so the block's weight will be the only thing that contribute to the normal force
 
So the Fn is the opposite of Fg, so 9.8 x 10 = 980 N?
 
no, Fn is not the "opposite" of Fg
Fg is pointing down, while Fn is on a diagonal
 
Okay so how do you calculate Fn?
 
big hint: vector components..
 

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