posted by C. .
a worker pushes a 7kg shipping box along a roller track. assume friction is small enough to be ignored because of the rollers. the worker's push is 25 N directed down and to the right at an angle of 20 degrees.
1. determine the horizontal component of the worker's push
2. write a net force equation for the horizontal forces on the box
3. determine the acceleration of the box
4. determine the normal force on the box