Unit 3 – Forces in Equilibrium

(Statics and Newton’s First Law of Motion)

Unit 3 Learning Targets

3-1: I can describe the ideal conditions applied to the study of forces (Ignoring friction).

3-2: I can diagram and calculate the horizontal and vertical components of force.

3-3: I can explain contact forces on the atomic scale using the particle model.

3-4: I can mathematically describe friction forces.

3-5: I can explain and calculate the apparent weight of an object when it's acceleration is zero.

3-6: I can apply Newton's first law of motion to mathematically describe and predict the effects of forces on complex systems of objects.


Component- A vector is a quantity that has both magnitude and direction


Free Body Diagram-