Newton's First Law

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Isaac Newton, in the 17th century, put forth three laws that explain why objects move (or don't move) as they do and these have become known as Newton's three laws of motion. Newton's first law, the law of inertia, says: an object at rest will stay at rest unless an external force is applied to it; and an object in motion will not change its velocity, unless an external force is applied to it. Basically, this means that there is a natural tendency of objects to keep doing what they are doing.

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  • 1st Law states that an object will continue without a change in motion (constant velocity) if there are no outside forces. 2nd Law states ... (more)
    Jeff C answered · 2 likes
  • Newton didn't discover gravity so much as he was the first to explain it in a detailed quantitative manner. Newton was the first to posit ... (more)
    Dr. $ answered · 3 likes
  • Well, there is no inertia mass (unless you meant inertial mass) but mass can have inertia. This is [Newton's first ... (more)
    Koppany H. answered · 2 likes
  • Equilibrium is the state in which the sum of all the forces on a body (the net force) and, independently, the net ... (more)
    Dr F answered · 2 likes
  • Net force means the resultant . * ... (more)
    Jeff C answered · 2 likes
  • Someone from Des Moines, United States asked · 2 likes
  • Inertia (momentum) is linearly dependent on an object's mass. So is the gravitational force on the object. The first property is sometimes ... (more)
    Dr. $ answered · 2 likes
  • This question isn't very well-defined--inertia relates to the flight of an airplane in different ways, depending on which component of the ... (more)
    Jason B. answered · 3 likes
  • [Newton's first law]( is a statement of _the principle of inertia_. ... (more)
    snarf answered · 2 likes
  • That may seem to be the case, but it is a fallacy. [Newton's second ... (more)
    Dr. $ answered · 2 likes
  • I believe what you are actually looking for is the [moment of inertia]( ... (more)
    MrWnphs answered · 3 likes
  • The net force on an object is just the sum of all outside forces. So the affect of any non-zero net force is to cause an ... (more)
    Matt C. answered · 2 likes
  • [Newton's first law]( affects all objects the same way - including ... (more)
    Jeff C answered · 2 likes
  • [Newton's first law]( of motion is sometimes called the law of ... (more)
    Nancy F. answered · 1 like
  • [Static equilibrium]( is when the following two conditions are met: 1) ... (more)
    Jeff C answered · 2 likes
  • There are many examples of [static equilibrium](, but basically any system ... (more)
    Jeff C answered · 2 likes
  • [Newton's First Law](, the Law of Inertia, is what makes roller ... (more)
    Biology_geek answered · 2 likes
  • In the absence of friction, the inertia of a puck will keep it moving in a straight line at a constant speed. The inertia of an object is ... (more)
    Scott S. answered · 1 like
  • The net force may change with movement, but in general it does not. In the case of static vs kinetic friction, the net force can decrease ... (more)
    Jeff C answered · 2 likes
  • Remember the net force means, "the SUM of all forces" To understand a net force of zero you can visualize a situation where two friends ... (more)
    Basement Bob answered · 2 likes

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