9/27/13, Friday
Post date: Sep 27, 2013 2:11:33 AM
Bell ringer
Bell ringer
A 225 N steel box slides down a 25o steel ramp. How much frictional force acts on the box from the ramp?
Activities
Activities
Force problems, general procedure
Advanced friction problems
Practice
Practice
Box on table connected by string to box falling
Object on ramp with friction
Assignments
Assignments
P.145-149: 9, 10, 19, 20, 22, 31, 35, 38, 48, 50 (due Monday)
Announcements
Announcements
Chapter 4 test Tuesday
Air resistance lab due Tuesday