scalar

During motion in a straight line, the point object occupies a definite position on the path at each instant. Therefore, to describe the motion, one should specify the length of the path covered by the point object and the instant of time. The length of path covered by the object is the distance 's'..

Types of linear systems Gauss-Jordan elimination, Gauss-Jordan method Vectors and vector addition Geometrical solution sets of systems of equations Rectangular matrices to row echelon form Matrix multiplication Inverse to a square matrix Determinants of 2 by 2 and 3 by 3 matrices Row redu..

Work and Measurement of Work - Let us now discuss the conditions to be satisfied for work to be done. From the above examples, it is clear that work is said to be done when a force acts on an object and the point of application of the force moves in the direction of force. Hence, the essential cond..

Distance - During motion in a straight line, the point object occupies a definite position on the path at each instant. Therefore, to describe the motion, one should specify the length of the path covered by the point object and the instant of time. The length of path covered by the object is the d..

Let A = [a ij ] be a square matrix. We can associate with the square matrix A, a determinant which is formed by exactly the same array of elements of the matrix A. A determinant formed by the same array of elements of the square matrix A is called the determinant of the square matrix A and is denot..

Mass Weight 1 . It is the amount of matter contained in an object 2 . The mass of a body is constant throughout the universe 3 . Mass can never be equal to zero 4 . Mass is a scalar quantity 5 . SI unit of mass is kg 1 . It is the force with which an object is pulled ..

Pressure is a scalar quantity, because its direction is unique (normal to the area) and not to be specified. Barometer uses mercury. This is because, if water were used, then a longer glass tube would have to be used (10m, since10m of water column is required to balance the atmospher..

Mass Weight It is the amount of matter contained in an object It is the force with which an object is pulled towards the Earth The mass of a body is constant throughout the universe Weight varies from place to place as g varies Mass can never be equal to zero Weight can b..

Determinants - Let A = [a ij ] be a square matrix. We can associate with the square matrix A, a determinant which is formed by exactly the same array of elements of the matrix A. A determinant formed by the same array of elements of the square matrix A is called the determinant of the square matrix..

Motion: Whenever a body changes its position continuously with respect to the position of other bodies around it then it is said to be in motion. Rest: An object which does not change its position with respect to its surroundings is said to be at rest. Distance: It is the actual length of t..