What is Newton mechanics: Definition and 55 Discussions

In classical mechanics, Newton's laws of motion are three laws that describe the relationship between the motion of an object and the forces acting on it. The first law states that an object either remains at rest or continues to move at a constant velocity, unless it is acted upon by an external force. The second law states that the rate of change of momentum of an object is directly proportional to the force applied, or, for an object with constant mass, that the net force on an object is equal to the mass of that object multiplied by the acceleration. The third law states that when one object exerts a force on a second object, that second object exerts a force that is equal in magnitude and opposite in direction on the first object.
The three laws of motion were first compiled by Isaac Newton in his Philosophiæ Naturalis Principia Mathematica (Mathematical Principles of Natural Philosophy), first published in 1687. Newton used them to explain and investigate the motion of many physical objects and systems, which laid the foundation for Newtonian mechanics.

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  1. B

    Accelerometer on a rotating wheel- Net force calculation

    Homework Statement I have two analog MEMS accelerometers ADXL337, ADXL377. The ADXL337 can measure acceleration upto +/- 3g (where g = gravitational acceleration) and ADXL377 can measure upto acceleration of +/- 200g. More than this much amount of acceleration, would create noise and random...
  2. feyn

    Where does the energy for gravity come from?

    Basically my question is this( and sorry if my formulations are at times a bit sloppy, English is not my first language) : 1. we know energy can neither be created nor destroyed, it can only neconverted from one form into another 2.We know that an object in space, that is moving, will move...
  3. A

    Is any good way on how to deal with Newton Mechanics?

    just asking, because it seems abstract and complicated for me.
  4. K

    Newton Mechanics vs Special Relativity Problem

    Homework Statement According to Newtonian mechanics the momentum of the bus in the preceding problem is p= mv. According to relativity, p = gamma*mv. How does the actual momentum of the bus moving at .99c compare with the momentum it would have if classical mechanics were valid? *Note* The...
  5. E

    Calculating Velocity & Compass Heading After Car-Truck Collision

    A 1940 kg Oldsmobile traveling west on Saginaw Street at 17.4 m/s is unable to stop on the ice covered intersection for a red light at Abbott Road. The car collides with a 4166 kg truck hauling animal feed south on Abbott at 9.5 m/s. The two vehicles remain locked together after the impact...
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