rigid body
Inflexible physical mass
A rigid body is an idealized solid object in physics whose parts maintain fixed positions relative to each other regardless of external forces.
Real objects deform under stress, but treating them as rigid bodies simplifies calculations in mechanics: We can model the beam as a rigid body for this problem.
The concept is fundamental to classical mechanics and engineering analysis.
- mechanicsScience of motion
- Newton's lawsThree motion axioms
- gyroscopic stabilityBalance from angular momentum
- dynamicsStudy of forces
- rotationTurning on an axis
spinning top · moment of inertia · angular acceleration · physics · torque · nutation · inertia · Foucault pendulum · precession · mass · center of mass · center of gravity · statics · kinematics · angular momentum · equilibrium · billiard ball · bowling ball