Re: [Phys-l] A Crude Attempt at Analysis

[John Mallinckrodt <ajm@csupomona.edu>]

Chuck Britton wrote:

> Care to comment on the totalized forces on the mathematical cubic 
> volume that I've described??

I think I already did at 

  https://carnot.physics.buffalo.edu/archives/2010/11_2010/msg00159.html

Of course, Newton's second law tells us that the net contact force on an object subject only to contact forces and gravity is

  F_contact = m(a – g)

and, if it isn't accelerating,

  F_contact = –mg

John Mallinckrodt
Cal Poly Pomona