Equilibrium of a Rigid body A rigid body is said to be in mechanical equilibrium, if both its linear momentum and angular momentum are not changing with time. In other words, the body is in mechanical equilibrium when it has neither linear acceleration nor angular acceleration.This means the conditions for equilibrium can be expressed as

Angular Momentum In our last post we have discussed on Linear momentum. Just to brush up, when an object of mass m moves with a speed v in a straight line, we say that it has a linear momentum, p=mv. When the same object moves with an angular speed ω along the circumference of a

Momentum While playing some sort of body-contact game, if we are pushed by a heavy but slow moving person, we begin to move. Similarly if a lighter person comes with higher velocity and pushes us we may face the same net effect and again begin to move. In physics, these effects can be well explained