Block on a Plane - Friction problem

AI Thread Summary
The discussion focuses on a physics problem involving a block on an inclined plane with friction considerations. It emphasizes that the friction between the wedge and the table is irrelevant due to the table being frictionless. The main concern is the interaction between the wedge and the block, specifically neglecting kinetic friction. To solve the problem, one must determine two applied force values: one that prevents the block from sliding down and another that is just insufficient to make the block slide up. A free-body diagram is recommended to visualize the forces acting on the block effectively.
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Block on a Plane -- Friction problem

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You don't care in this problem about the interaction of the wedge and the table, since the table is frictionless. You care about the interaction of the wedge and the block, but even there you don't care about kinetic friction.

You have to solve for two different values of the applied force: one that will be just enough to keep the block from sliding down, and one that will be just less than enough to make the block slide up.

Start by drawing a free-body diagram to identify all the forces acting on the small block.
 

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