Can the Normal Force Produce a Torque on an Object on an Incline?

[rashida564]

Hi everyone I can't understand how normal force produce torque isn't normal force acts normally on the plane so the perpendicular distance in case if it was like block will be zero, so normal force doesn't produce torque. "case of box"

 

[Chestermiller]

I don't have any idea what you are describing here. Can you please provide a diagram?

 

[dsaun777]

Summary:: Normal force producing torque on inclines.

Hi everyone I can't understand how normal force produce torque isn't normal force acts normally on the plane so the perpendicular distance in case if it was like block will be zero, so normal force doesn't produce torque. "case of box"

Are you referring to internal stress?

 

[rashida564]

Is all normal force haze zero torque

 

[dsaun777]

Is all normal force haze zero torque

Depends on the friction I think

 

[Chestermiller]

Is all normal force haze zero torque

Here's a geometry question for you: If you have a line tangent to a circle, the normal to the line at the point of tangency passes through the center of the circle. True of False.

 

[rashida564]

Yes

 

[rashida564]

But why square shapes get torque from normal forces

 

[Chestermiller]

But why square shapes get torque from normal forces

Please provide a diagram for square shapes.

 

[rashida564]

Square

 

[Chestermiller]

Square

Who says that the normal force results in a torque about the center of the square?

 

[rashida564]

How square in friction surface have net torque of zero

 

[dsaun777]

How square in friction surface have net torque of zero

Internal "torques" exist in the form of stress.

 

[rashida564]

But internal torques comes in pair so they cancel each other

 

[Chestermiller]

As @dsaun777 indicates, if friction is present, the normal force is not distributed uniformly over the base of the square, and the normal stress is greater near the downward edge than near the upper edge on the base.