how does inertia come into play in newton's 1st law of motion?

Answer 1

Sir Isaac Newton first presented his three laws of motion in the "Principia Mathematica Philosophiae Naturalis" in 1686. His first law states that every object will remain at rest or in uniform motion in a straight line unless compelled to change its state by the action of an external force. This is normally taken as the definition of inertia. The key point here is that if there is no net force resulting from unbalanced forces acting on an object (if all the external forces cancel each other out), then the object will maintain a constant velocity. If that velocity is zero, then the object remains at rest. And if an additional external force is applied, the velocity will change because of the force. The amount of the change in velocity is determined by Newton's second law of motion.

There are many excellent examples of Newton's first law involving aerodynamics. The motion of an airplane when the pilot changes the throttle setting of the engine is described by the first law. The motion of a ball falling down through the atmosphere, or a model rocket being launched up into the atmosphere are both examples of Newton's first law. The motion of a kite when the wind changes can also be described by the first law. We have created separate pages which describe each of these examples in more detail to help you understand this important physical principle.

Answer 2

First regulation: If an merchandise stories no internet rigidity, then its speed is continuous: the item is the two at relax (if its speed is 0), or it strikes in a promptly line with consistent speed (if its speed is nonzero).[2][3][4] 2nd regulation: The acceleration a of a physique is parallel and without postpone proportional to the internet rigidity F appearing on the physique, is contained in direction of the internet rigidity, and is inversely proportional to the mass m of the physique, i.e., F = ma. 0.33 regulation: while a accepted physique exerts a rigidity F1 on a 2nd physique, the 2nd physique concurrently exerts a rigidity F2 = ?F1 on the 1st physique. this suggests that F1 and F2 are equivalent in value and opposite in direction.

Answer 3

http://www.glenbrook.k12.il.us/GBSSCI/PHYS/CLASS/newtlaws/u2l1a.html
this link explains it pretty well.