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Forces Trisha Dharmapuri #505 (Newton's Third Law (Momentum = Mass *…

- - - - Static Friction
        
        Friction force that acts on unmoving objects
      - Sliding Friction
        
        A force that opposes the direction of motion of a sliding object
      - Rolling Friction
        
        A change in shape of a rolling object and the ground
      - Fluid Friction
        
        A force opposing the motion of an object through a fluid
        
        Air resistance is fluid friction acting on an object in the air
- - - - the energy stored in a motionless object
      - mass * acceleration due to gravity * height = potential energy
    - - the energy of an object in motion
      - 1/2 mass * velocity^2
    - - kinetic energy + potential energy = mechanical energy
      - the energy in an object due to its motion, position, or both