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Free Fall, The Principle of Conservation of Momentum states that the total…

- - - - Force
        
        The force magnitude in an equilibrium situation is equal to the magnitude of friction.
        
        Friction
        
        Friction is calculated through the multiplication of the coefficient of friction and normal force.
        
        Normal Force
        
        Normal Force in an equilibrium problem is equivalent to the magnitude of weight.
        
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        Force are a push or pull exerted on an object that causes a change in motion due to contact.
        
        Contact Force
        
        A contact force is any force that requires contact to occur
        
        Forces require a direction and can be displayed through a diagram.
        
        Free body diagram
        
        A free body diagram is a physical model that represents the forces acting on a system.
        
        Isolated System
        
        An isolated system prohibits the exchanging of matter & energy
        
        Force that are everyday forces for example tension are electroweak.
        
        Electroweak Force
        
        Electroweak forces are electric, magnetic, weak nuclear forces that are all fundamental forces
        
        Fundamental Force
        
        Fundamental forces are any of the three basic forces (gravitational, electroweak, strong nuclear) that govern how objects interact and decay.
- - - - Kinetic energy in a system with only conservative forces acting upon an object is equal to the value of potential energy
        
        Potential Energy
        
        Potential energy is the stored energy of an object relative to the force of gravity.
        
        Gravitational Potential Energy
        
        Gravitational Potential Energy is calculated by multiplying the acceleration of gravity, mass, and height of an object
      - Kinetic energy is lost and turned into thermal energy when an object experiences kinetic friction.
        
        Kinetic Friction
        
        Kinetic friction is weaker than static friction
      - Kinetic friction combined with potential energy of system create mechanical energy.
        
        Mechanical Energy
        
        Mechanical energy remains constant when conservative forces act on a system or object.