Pushing wooden creat - Friction

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When pushing a wooden crate across the floor at a constant speed, the force required remains the same regardless of the crate's orientation, as friction depends primarily on the normal force and the materials involved, not the contact area. Reducing the contact area does not halve the frictional force, as friction is generally independent of surface area. This principle can be counterintuitive, but it holds true except in cases of very small contact areas where other factors may come into play. Therefore, the force needed to maintain constant speed remains equal, despite changes in orientation. Understanding these friction principles is crucial for accurate force calculations in physics.
kmikias
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Hi guys I always confuse on this question its all about force.

for example

Let say I am pushing a wooden creat across the floor at constant speed.and I decide to turn the creat on end,to reducing by half the area in the contact with the floor . ...so if i push the same creat acroos the same floor with the same constant speed ...Does the force equall or one half greater or what?

I am thinking it will be equall because area doesn't affect force. in the other hand i am thinking it one half because the friction will be less i guess.

I am just confuse?
 
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In simple terms friction only depends on the normal force (weight) and the material of the two surfaces - it is independant of surface area (except for very small surface areas when you get direct welding).

It is surprising to most people but it is true!
 

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