Finding the Normal Force of a block

In summary, when an object slides along a horizontal circular path on the inside of a friction-free cone, the normal force is greater than the weight of the object, and this is due to the spinning motion of the object putting more force on the cone walls. This leads to the conclusion that the normal force may be greater than the weight, making option 3 the correct answer.
  • #1
trivk96
47
0

Homework Statement


And when the block is sliding along a horizontal circular path on the inside of a friction-free cone,the magnitude of the normal force (use the diagram)
1. is greater than mg, always.
2. is equal to mg.
3. may be greater than mg.
4. is less than mg, always.
5. may be less than mg.


Homework Equations


F=ma


The Attempt at a Solution


Fn=mg if horizontal plane which means when on a tilted plane, Fn<mg But in this case, the objects spins around which means it puts more force on the cone walls thus... more normal force. i believe it is 3. is this correct?
 
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  • #2
Can we see the diagram that you were using, or some crude replica of it?
 
  • #3
I thought i uploaded on the last post sorry
 

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FAQ: Finding the Normal Force of a block

1. What is the normal force?

The normal force is the force exerted by a surface on an object that is in contact with it. It is perpendicular to the surface and prevents the object from falling through the surface.

2. How do you calculate the normal force?

The normal force can be calculated using the formula FN = mgcosθ, where m is the mass of the object, g is the acceleration due to gravity, and θ is the angle of the surface with respect to the horizontal.

3. What factors affect the normal force?

The normal force is affected by the mass of the object, the angle of the surface, and the acceleration due to gravity. It is also affected by any external forces acting on the object, such as friction or applied forces.

4. Why is the normal force important?

The normal force is important because it is essential for objects to remain in equilibrium and not fall through surfaces. It also plays a crucial role in determining the frictional force between surfaces.

5. Can the normal force be greater than the weight of an object?

Yes, the normal force can be greater than the weight of an object if there are additional external forces acting on the object, such as an applied force pushing down on the object. In this case, the normal force would be equal to the sum of the weight and the applied force.

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