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rigid body has definite shape but deformable body does not have .
The key difference between a particle and a rigid body is that a particle can undergo only translational motion whereas a rigid body can undergo both translational and rotational motion
no body is truely rigid body because we observe rigid body at microscopic level
because a rigid body can vibrate.
It has a rigid skeleton but the body is flexible.
An elastic body will stretch when loaded. A rigid body willl not. A rigid body is a theortical body only in which stiffness is infinite.
In statics a particle and a rigid body are viewed as pretty much the same thing, and can be analysed with the same methods. Assuming that a particle is in equilibrium i.e. the sum of the forces and the moments are all zero, and that a rigid body is made up of particles, we know that if each particle of this body is in equilibrium (internal forces cancel each other out) then we can conclude that the body must therefore also be in equilibrium. The difference between these a particle and a body is we will usually find a particle in space without these so-called constraints, while a rigid body- a beam comes immediately to mind, is usually constrained in some or other manner, by either a pin or roller or any other way.
The skeletal system gives rigid support to the body.
A Rigid body is defined as a system of particles which does not deform.
The degree of freedom of a rigid body when one point of the body is fixed is zero. This means that the rigid body has no motion at all as it is completely pinned down by the fixed point. Any movement of the rigid body would cause it to become non-rigid.The degrees of freedom of a rigid body are expressed in terms of six independent parameters which are:Translation in three orthogonal directionsRotation around three orthogonal axesWhen one point of the rigid body is fixed the body cannot move in any of these directions resulting in a degree of freedom of zero.
the difference between a cell and a factory in that cells are in your body and factory is not
Any body falling into a black hole will get completely destroyed. There is no such thing as an absolutely rigid body; a "rigid body" is an approximation that may help with some calculations, and such an approximation is valid (i.e., it's a good approximation) under certain circumstances, but a body will certainly not remain rigid under the extreme circumstances of a black hole.