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.