Please enable JavaScript.

Coggle requires JavaScript to display documents.

Forces (Newton's 3rd Law (Identifying and describing action-reaction…

- - - - 9.8 N/kg
        
        Since all things are in earth's gravitational field they all fall at 9.8 m/s/s
  - - - Objects speed (as speed increases air resistance increases)
      - Objects Cross sectional Area (as CSA increases the air resistance increases)
    - - the amount of velocity that terminates as a result of the balance of forces.
  - - - Involves a combination of a system analysis and an individual body analysis.
        
        In the system analysis the two objects are considered to be a single object moving together as a whole.
        
        the mass is the sum of the mass of the two individual objects.
        
        The acceleration is the same as the objects individually.
        
        Used to determine the acceleration of the system.
        
        In the individual analysis either one of the two objects is isolated and considered as a separate, independent object.
        
        A free body diagram is constructed and the individual forces acting upon the object are identified and calculated.
        
        Usually performed in order to determine the value of any force which acts between the two objects.
      - Involves the use of two separate individual object analyses.
        
        Free body diagrams are constructed independently for each object.
        
        Newton's 2nd Law is used to relate the individual force values to the mass and acceleration.
        
        Each individual object analysis generates an equation with an unknown. The result is a system of two equations with two unknowns.
        
        The system of equations is solved in order to determine the unknown values.
- - - - Frictional
        
        the force exerted by a surface as an object moves across it or makes an effort to.
        
        Ffrict
      - Tension
        
        the force that is transmitted through a string, rope or cable when pulled on both ends
        
        Ftens
      - Normal
        
        the support force exerted upon an object in contact with a stable object.
        
        Fnorm
      - Air Resistance
        
        a special type of frictional force that acts upon objects falling through the air.
        
        Fair
      - Applied
        
        a force that is applied to an object by a person or another object.
        
        Fapp
      - Spring
        
        the force exerted by a compressed or stretched spring upon any object attached to it.
        
        Fspring
      - Types of forces that result when two interacting objects are perceived to be physically contacting each other.
    - - Gravitational
        
        Force of gravity is always equal to the weight: Fgrav = mg (g=9.8 m/s/s)
        
        Fgrav
      - Electrical
        
        A force applied to an object by an electrical field.
      - Magnetic
        
        A force applied to an object by a magnetic field.
      - forces that result even when the two interacting objects are not in physical contact with each other, yet are able to push or pull.
  - - - the amount of matter contained by the object.
    - - the force of gravity working upon an object.
  - - - when an object slides across a surface.
      - Ffrict-sliding = μ * Fnorm
        
        μ is a measure of the relative adhesion or attraction of the two surfaces to each other.
    - - when the surfaces of two objects are at rest relative to one another and a force exists on one of the objects to set it into motion relative to the other object.
      - Ffrict-static ≤ μ * Fnorm