What do you mean by mass element $dm$ ?
Explain translational motion by given illustration.
"A particle has point volume". True of False ?
How can general body be obtained ?
Two hollow spheres each of mass $M$ and radius $\frac {R}{2}$ are connected with a massless rod of length $2R$ as shown in figure. What will be the moment of inhertia of the system about an axis $yy'$ passing through the center of one of the sphere and perpendicular to the rod
What is the total momentum of the system of particle ?