A backpack full of blocks weighing 60.0N rests on a table in a physics laboratory classroom. A spring with a force constant of 160N/m is attached to the backpack and pulled horizontally. If the backpack begins to slide when the spring (k=160N/m) strectches by 2.40cm, what is the coefficent of the static friction between the backpack and the table?
What Is The Coefficent Of The Static Friction Between The Backpack And The Table?
October 1st, 2009 
Luggage Boy 
Posted in Q & A 
Tags: 40cm, Backpack, Coefficent, Is, Laboratory Classroom, Of, Physics Laboratory, Static Friction, The, What
Find the friction force f = kx, then compute ?s = f/normal force = f/mg.