## Newtons Second Law of Motion (Definition)

Definition: It states “The rate of change of momentum is directly proportional to the impressed force and takes place in the same direction in which the force acts. Facebook Comments Read More »

## Mass (Definition)

Definition: It is the amount of matter contained in a given body, and does not very with the change in its position on the earths surface. The mass of the body is measured by direct compraision with a standard mass by using a level balance. Facebook Comments Read More »

## Weight

Definition: It is the amount of pull, which the earth exerts upon a given body. Since the pull verys with distance of the body from the centre of earth, therefore the weight of the body will very with its position on the earth surface (say latitude and elevation). It is thus obvious, that the weight is force. Facebook Comments Read More »

## Momentum

Definition: It is the total possessed by a body. Mathematically, Momentum=Mass x Velocity Where: m = mass of the body u = initial velocity of body v = final velocity of a body a = constant acceleration t = time required (in seconds) to change the velocity from u to v. Facebook Comments Read More »

## Moment of Force

Definition: It is the Turning effect produced by a force, on the body, on which it acts. The moment of force is equal to the product of force and the perpendicular distance of the point about which the moment is required and the line of action of the force. Mathematically: Moment of force=F x L Facebook Comments Read More »

## Mass Moment of Inertia

Definition: It has been established since long that a rigid body is composed of small particles. if the mass of every particle of a body is multiplied by the square of its perpendicular distance from a fixed live, then the sum of these quantities (for the whole body) is known as mass moment of inertia of the body. it is ... Read More »

## Torque

Definition: It may be defined as the product of force and the perpendicular distance of its line of action from the given point or axis. A little consideration will show that the torque is equivalent to a couple acting upon a body. Facebook Comments Read More »