Tuesday - Net Force

Yes! It's Tuesday! Three days until UofA plays in the Sweet Sixteen!

When I instruct you to do so, click this link: 

http://phet.colorado.edu/sims/html/forces-and-motion-basics/latest/forces-and-motion-basics_en.html

Assignment:

Name_________________________                                Period ___________________________

SITUATIONS

1. Mr. Richardson and Ms. Slivova are fighting over a cookie. Mr. Richardson pulls to the right with a force of 20 N and Ms. Slivova pulls to the left with a force of 35 N.  Draw a diagram, calculate the net force, and determine if the forces are balanced or unbalanced.

2. Erik and Ashlyn are trying to push Mr. Richardson in his chair. Erik pushes to the right with 10 N of force and Ashlyn helps by pushing in the same direction with 11 N of force. Draw a diagram, calculate the net force, and determine if the forces are balanced or unbalanced.

3. The book is resting on the desk.  Gravity is pulling it down with a force of 2N, and the desk pushes it back up with a force of 2N. Draw a diagram, calculate the net force, and determine if the forces are balanced or unbalanced.

4. Johnny Depp pushes on a set of doors with a force of 7N.  Brad Pitt pushes on the same set of doors with a force of 10N.  Draw a diagram, calculate the net force, and determine if the forces are balanced or unbalanced.

5. Jessica and Karen both want the last Snickers bar. Jessica is pulling to the right with 15 N of force and Karen is pulling to the left with 10 N of force. Draw the diagram below and calculate the net force.

6. Vanessa and Omar are trying to move Mr. Mitchell’s desk. Vanessa pushes with 20 N of force and Omar pushes in the same direction with 15 N of force. Draw the diagram below and calculate the net force.