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Center-of-mass; momentum; energy

Center of mass

• Center of mass
• Center of gravity
• Three balls
• Question
• Motion of the center-of-mass
• Conservation of momentum
• Example 1

1-D Collision Examples

• Baseball and basketball

Questions

• Question 1
• Question 2

2-D Collisions

• Collisions in 2-D
• Sample problem

Pulleys and Levers

Power

• Our average power
• A car on a hill

Loop-the-loop

Example Problem