Physics
Fox

Forces & Motion

Intro: Forces to be Reckoned With

How your Eyes Work Speed



Summary

  • How do things move? We can answer this with only 2 laws:

    Balanced force law:
    When an object's net force = 0, it continues to move at the same speed (in the same direction).
    Unbalanced force law:
    F
    \(\leftarrow\)
    \(\rightarrow\)
    F
    When an object's net force ≠ 0, its speed increases (in the direction of the net force).

  • Of course, these laws don't mean anything to us yet because we don't know what speed, force and net force are! We will learn all about these over the next few pages, then return to the laws.



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