1. Week

2.  Student will:  Incorporate Force of Friction into calculation  Static Friction  Kinetic Friction Cornell Notes Needed – Section 5.2

3. Example: Coefficients of Friction When Colossus pushes a 2000 kg shipping box resting on a road, he exerts a force of 1800 N to start it sliding. Once it is sliding, he uses a force of only 1500 N to keep the shipping box moving with constant speed. What are the coefficients of static and kinetic friction between the shipping box and the road?

4. Steps 1)Define When Colossus pushes a 2000 kg shipping box resting on a road, he exerts a force of 1800 N to start it sliding. Once it is sliding, he uses a force of only 1500 N to keep the shipping box moving with constant speed. What are the coefficients of static and kinetic friction between the shipping box and the road?

5. Choose an equation or situation: Rearrange the equation to isolate the unknown: 2)Plan F n = mg because it is on a horizontal surface

6. Substitute the values into the equation and solve 3)Calculate Coefficient of frictions do not have units

7. The coefficient of static friction is.092 and coefficient of kinetic friction is.076. 4)Evaluate