An introduction to centripetal force: Definition, formulas, and examples
In physics, the centripetal force is used widely for circular motion. Centripetal force is a general type of force and is usually used for...
Rolling Motion
The combination of rotational motion and the translation motion of a rigid body is known as rolling motion.
The kinetic energy associated with a body...
Moment of Inertia
The inertia of rotational motion is called the moment of inertia. It is denoted by L.
Moment of inertia is the property of an object...
Rigid body Rotation and Equation of Rotational motion
The resultant torque acting on the body must be zero. The sum of anti-clockwise torques about any axis must be equal to the sum...
Equilibrium of Rigid Bodies
A rigid body is said to be in mechanical equilibrium if both its linear momentum and angular momentum are not changing with time, or...
Angular Momentum (ρ)
The quantity of rotational motion in a body is called its angular momentum. Thus angular momentum plays the same role in rotational motion as...
Moment of force (Torque)
The motion of a rigid body, in general, is a combination of rotation and translation. If the body is fixed at a point or...
Centre of mass of a Uniform Rod
Suppose a rod of mass M and length L is lying along the x-axis with its one end at x = 0 and the...
Linear Momentum of a system of Particles
The linear momentum of a particle is defined as
p = m v
Let us also recall that Newton’s second law written in symbolic form for...
Motion of Centre of Mass
The definition of the centre of mass, we are now in a position to discuss its physical importance for a system of particles.
…………..(3)
Differentiating...