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  2. Momentum - Wikipedia

    en.wikipedia.org/wiki/Momentum

    where f is the body force. [36] The Cauchy momentum equation is broadly applicable to deformations of solids and liquids. The relationship between the stresses and the strain rate depends on the properties of the material (see Types of viscosity).

  3. Torque - Wikipedia

    en.wikipedia.org/wiki/Torque

    If Imperial units are used, and if torque is in pounds-force feet and rotational speed in revolutions per minute, the above equation gives power in foot pounds-force per minute. The horsepower form of the equation is then derived by applying the conversion factor 33,000 ft⋅lbf/min per horsepower:

  4. Moment (physics) - Wikipedia

    en.wikipedia.org/wiki/Moment_(physics)

    The moment of force, or torque, is a first moment: =, or, more generally, .; Similarly, angular momentum is the 1st moment of momentum: =.Momentum itself is not a moment.; The electric dipole moment is also a 1st moment: = for two opposite point charges or () for a distributed charge with charge density ().

  5. Impulse (physics) - Wikipedia

    en.wikipedia.org/wiki/Impulse_(physics)

    In classical mechanics, impulse (symbolized by J or Imp) is the change in momentum of an object. If the initial momentum of an object is p 1, and a subsequent momentum is p 2, the object has received an impulse J: =. Momentum is a vector quantity, so impulse is also a vector quantity.

  6. Energy–momentum relation - Wikipedia

    en.wikipedia.org/wiki/Energy–momentum_relation

    In physics, the energy–momentum relation, or relativistic dispersion relation, is the relativistic equation relating total energy (which is also called relativistic energy) to invariant mass (which is also called rest mass) and momentum. It is the extension of mass–energy equivalence for bodies or systems with non-zero momentum.

  7. Angular momentum - Wikipedia

    en.wikipedia.org/wiki/Angular_momentum

    The trivial case of the angular momentum of a body in an orbit is given by = where is the mass of the orbiting object, is the orbit's frequency and is the orbit's radius.. The angular momentum of a uniform rigid sphere rotating around its axis, instead, is given by = where is the sphere's mass, is the frequency of rotation and is the sphere's radius.

  8. Equations of motion - Wikipedia

    en.wikipedia.org/wiki/Equations_of_motion

    The force in the equation is not the force the object exerts. Replacing momentum by mass times velocity, the law is also written more famously as = since m is a constant in Newtonian mechanics. Newton's second law applies to point-like particles, and to all points in a rigid body.

  9. Moment of inertia - Wikipedia

    en.wikipedia.org/wiki/Moment_of_inertia

    then the equation for angular momentum simplifies to [23]: 1028 = ^. The moment of inertia I C {\displaystyle I_{\mathbf {C} }} about an axis perpendicular to the movement of the rigid system and through the center of mass is known as the polar moment of inertia .