Recent content by luftey

Ok thanks, makes sense about the two frictions. I guess it was just blind luck that that worked ;p How exactly would one find that angle where the object begins to slide? Would it be using the distance(sin)"beta"? I'm pretty sure I can solve it once I figure out how to find it at what angle...

A box of books is initially at rest a distance D = 0.545 m from the end of a wooden board. The coefficient of static friction between the box and the board is μs = 0.302, and the coefficient of kinetic friction is μk = 0.238. The angle of the board is increased slowly, until the box just begins...