A worker applies a horizontal force to the top edge of a crate to get it to tip forward (see the figure ). the create has a mass of 80kg and is 1.6m...

A worker applies a horizontal force to the top edge of a crate to get it to tip forward (see the figure ). the create has a mass of 80kg and is 1.6m tall and 0.80m in depth and width, what is the minimum force needed to make the crate start tipping? (Assume the center of mass of the crate is at its center and static friction great enough to prevent slipping.)