FRICTION: Solving the Mystery of Unbalanced Normal Force in Cam FBDs

[Saladsamurai]

[SOLVED] FRICTION again:What Am I missing here??

Homework Statement

I must be missing something huge here (in general) Looking at my FBD of just the cam, again, my normal force goes unbalanced so it equals zero.

What did I miss? Forgive me if it's obvious, but I have a hard time learning this just with a text and no mentor.

 

[Valkarie]

Homework Equations F = maThe Attempt at a Solution You did not account for gravity in your Free Body Diagram. Gravity is a force, and it should be included in the FBD. Additionally, you may have missed taking into account any friction forces, such as the friction between the cam and the surface it is resting on.

 

[piercas]

Homework Equations
N/A

The Solution
After carefully examining your cam FBD, it appears that you may have overlooked the presence of friction in your system. Friction is a force that opposes the motion or attempted motion of an object and can cause a difference in the normal force. In order to accurately solve for the normal force, you must take into account the friction force acting on the cam. This can be done by including a frictional force arrow on your FBD and using the appropriate equations to solve for the normal force. Additionally, make sure to consider the direction of the friction force, as it can change depending on the direction of motion. It is important to carefully analyze all forces acting on the object in order to accurately solve for the normal force and solve the mystery of unbalanced forces in your cam FBDs. If you continue to have trouble, it is always helpful to seek guidance from a mentor or tutor who can provide additional support and clarification.