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...
The centre of mass
The centre of mass of a system of particles moves as if all the mass of the system was concentrated at the centre of...
Inelastic Collision
During a collision between two bodies if there is a loss of kinetic energy, then the collision is said to be an inelastic collision.
In...
Collisions
Collision between two or more particles is the interaction for a short interval of time in which they apply relatively strong forces on each...
Conservative Forces
Forces are said to be conservative in nature if work done against the forces gets conversed in the body in form of potential energy....
Power
Power is defined as the time rate at which work is done or energy is transferred.
The average power of a force is defined as...
Conservation of Mechanical Energy
The total mechanical energy of a system is conserved if the forces, doing work on it, are conservative.
Suppose that a body undergoes displacement Δx...
Potential Energy of a spring
Energy possessed by the spring by virtue of compression or expansion against elastic force in the spring is known as elastic potential energy or...
Potential Energy
Potential energy is the ‘stored energy’ by virtue of the position or configuration of a body. The body left to itself releases this stored...