Sliding heavy crate across rough floor

[tim_mannire]

Homework Statement

You are trying to move a heavy crate by sliding it across a rough floor. Identify the forces involved in actually getting it to move.

Homework Equations

??

The Attempt at a Solution

forces of gravity, air resistance, friction??

 

[G01]

Yes, all those forces are acting on the block, but which are actually involved in moving the block? That is the question. Also, you are missing one force.

HINT: What is the person pushing the block doing?

It may help to draw a free body diagram.

 

[Moetasim]

I would like to clarify that the forces involved in moving a heavy crate across a rough floor include both external and internal forces. The external forces acting on the crate include the force of gravity, which pulls the crate towards the ground, and the force of air resistance, which acts against the movement of the crate. The internal forces involved in moving the crate include the force of friction, which is generated between the crate and the rough floor. This force opposes the direction of movement and makes it more difficult to slide the crate. In order to successfully move the crate, an external force must be applied to overcome the internal force of friction. This can be achieved by pushing or pulling the crate with a sufficient amount of force to overcome the friction. It is also important to consider the weight and mass of the crate, as this will affect the amount of force needed to move it. Additionally, the roughness of the floor and the surface area of the crate in contact with the floor will also impact the amount of friction present.