A. Sketch a free-body diagram for a book at rest on a level table.
(Remember: A proper free-body diagram should not have anything on it except a representation of the book and the forces exerted on the book.) (include a picture of your group's sketch here after discussion)
Make sure the label for each force indicates:
- The type of force (gravitational, frictional, etc.),
- The object on which the force is exerted, and
- The object exerting the force.
1. What evidence do you have for the existence of each of the forces on your diagram?
2. What observation can you make that allows you to determine the relative magnitudes of the forces acting on the book?
How did you show the relative magnitudes of the forces on your diagram?
B. A second book of greater mass is placed on top of the first.
Sketch a free-body diagram for each of the books in the space below.
Label all the forces as in Part A. (You don't have to draw in the boxes, you may find it easier to include a picture of your group's sketch here after discussion)
Free-body diagram for upper book
Free-body diagram for lower book