The discussion revolves around a physics problem involving a block held against a wall by a horizontal force, with a focus on the forces acting on the block, including friction. The subject area pertains to mechanics, specifically the concepts of static friction and forces in equilibrium.
Some participants have provided hints and guidance on analyzing the forces acting on the block, emphasizing the importance of considering vertical forces and the role of static friction. There is an ongoing exploration of the logic behind the forces involved, with no explicit consensus reached yet.
Participants are navigating the constraints of the problem, including the lack of friction between the floor and the block, and the need to clarify the roles of different forces in maintaining equilibrium.
No it doesn't. It implies that the net force on the block is zero in all direction.physixguru said:exactly...the block does not move ..
this implies that the force applied by static friction equals the applied force..
Careful here: The reason that the applied force of man on block must equal the force of the wall on the block is NOT Newton's 3rd law. It's because we know the block does not move horizontally.but how do i estimate the magnitude of contact force between wall and the block...
i solved it the following way..
the force applied by man is equal and opposite to the force by the wall on the block.[NEWTON'S 3RD LAW]..this is why the block does not move...