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  2. Newton (unit) - Wikipedia

    en.wikipedia.org/wiki/Newton_(unit)

    The newton (symbol: N) is the unit of force in the International System of Units (SI). Expressed in terms of SI base units, it is 1 kg⋅m/s 2, the force that accelerates a mass of one kilogram at one metre per second squared. The unit is named after Isaac Newton in recognition of his work on classical mechanics, specifically his second law of ...

  3. Mass versus weight - Wikipedia

    en.wikipedia.org/wiki/Mass_versus_weight

    Because mass and weight are separate quantities, they have different units of measure. In the International System of Units (SI), the kilogram is the basic unit of mass, and the newton is the basic unit of force. The non-SI kilogram-force is also a unit of force typically used in the measure

  4. Force - Wikipedia

    en.wikipedia.org/wiki/Force

    The SI unit of force is the newton (symbol N), which is the force required to accelerate a one kilogram mass at a rate of one meter per second squared, or kg·m·s −2.The corresponding CGS unit is the dyne, the force required to accelerate a one gram mass by one centimeter per second squared, or g·cm·s −2. A newton is thus equal to ...

  5. International System of Units - Wikipedia

    en.wikipedia.org/wiki/International_System_of_Units

    A combination of base and derived units may be used to express a derived unit. For example, the SI unit of force is the newton (N), the SI unit of pressure is the pascal (Pa) – and the pascal can be defined as one newton per square metre (N/m 2). [6]

  6. Pound (force) - Wikipedia

    en.wikipedia.org/wiki/Pound_(force)

    This is convenient because one pound mass exerts one pound force due to gravity. Note, however, unlike the other systems the force unit is not equal to the mass unit multiplied by the acceleration unit [11] —the use of Newton's second law, F = m ⋅ a, requires another factor, g c, usually taken to be 32.174049 (lb⋅ft)/(lbf⋅s 2).

  7. Reduced mass - Wikipedia

    en.wikipedia.org/wiki/Reduced_mass

    Using Newton's second law, the force exerted by a body (particle 2) on another body (particle 1) is: =. The force exerted by particle 1 on particle 2 is: = According to Newton's third law, the force that particle 2 exerts on particle 1 is equal and opposite to the force that particle 1 exerts on particle 2: =

  8. Kilogram-force - Wikipedia

    en.wikipedia.org/wiki/Kilogram-force

    Even then, the proposal to define kilogram-force as a standard unit of force was explicitly rejected. [6] Instead, the newton was proposed in 1913 [7] and accepted in 1948. [8] The kilogram-force has never been a part of the International System of Units (SI), which was introduced in 1960. The SI unit of force is the newton. Prior to this, the ...

  9. Hooke's law - Wikipedia

    en.wikipedia.org/wiki/Hooke's_law

    Hooke's law: the force is proportional to the extension Bourdon tubes are based on Hooke's law. The force created by gas pressure inside the coiled metal tube above unwinds it by an amount proportional to the pressure. The balance wheel at the core of many mechanical clocks and watches depends on Hooke's law. Since the torque generated by the ...