Find Forces of Box on Surface: Normal, Friction, Applied, Weight

  • Thread starter Eathrock
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In summary, given the box is sitting on a surface, we can use the given values to find the normal force, frictional force, applied force, and force of weight in N. The weight, W = mg, points downward with gravity. Fa3 is at an angle of 22 degrees and Fa2 is parallel with the horizontal. However, without arrows indicating the direction of the applied forces, the problem cannot be fully interpreted.
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Eathrock
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  • #2
I can't interpret that illustration since there are no arrows pointing the direction of the applied forces.

The weight W = mg points downward with gravity.

Fa3 is at theta=22 degs?

Fa2 is parallel with horizontal?
 
  • #4
Fa3 is at theta=22 degs?
No
Fa2 is parallel with horizontal?
Unkown
 

1. What is the normal force in this scenario?

The normal force is the force exerted by the surface on the box that is perpendicular to the surface. It is equal in magnitude but opposite in direction to the weight of the box.

2. How do you calculate the frictional force?

The frictional force is calculated by multiplying the coefficient of friction (μ) by the normal force. The coefficient of friction is a measure of the interaction between the two surfaces and can be found in tables or experimentally determined.

3. What is the applied force in this situation?

The applied force is any external force acting on the box that is not caused by the surface or the weight of the box. This could include pushing or pulling the box, or any other force applied by an object or person.

4. How does the weight of the box affect the forces?

The weight of the box is the force exerted by gravity on the box due to its mass. It affects the normal force and can also affect the frictional force, as a heavier box will have a greater normal force and thus a greater potential for friction.

5. What are the units of measurement for these forces?

The normal force, applied force, and weight are all measured in units of Newtons (N), which is a unit of force in the International System of Units (SI). The coefficient of friction is a dimensionless quantity and therefore has no units of measurement.

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