1. Applying Newton's Laws: Free Body Diagrams Unit 4 Lesson 1 E. Alexander Burt Potomac School

3. The forces act on different objects.

6. Direction of the force and direction of arrow should be the same

8. Normal force: perpendicular to surfaces in contact.

9. Friction force: parallel to surfaces in contact.

10. Tension forces: pulling forces that run along strings and ropes.

12. Find the x and y components of all the vectors

14. Net force is the VECTOR sum of the forces.