Let P1 and P2 be the position of P, Q1 and Q2 be the position of Q and S1 and S2 be the position of S which are taken down with the help of the mirror. Remove the paper from the board. Using half-meter scale draw lines through P1 and P2, Q1 and Q2 and S1 and S2 represent P, Q, and S respectively.

**Table of Contents**show

## What is parallelogram law formula?

The Parallelogram law states that the sum of the squares of the length of the four sides of a parallelogram is equal to the sum of the squares of the length of the two diagonals.

## What is parallelogram law of addition class 11?

– Parallelogram law of vector addition states that. if two vectors are considered to be the adjacent sides of a parallelogram, then the resultant of the two vectors is given by the vector that is diagonal passing through the point of contact of two vectors.

## What is the parallelogram rule physics?

The parallelogram rule says that if we place two vectors so they have the same initial point, and then complete the vectors into a parallelogram, then the sum of the vectors is the directed diagonal that starts at the same point as the vectors.

## What is triangle law force?

Triangle Law of Forces It states, “If two forces acting simultaneously on a particle, be represented in magnitude and direction by the two sides of a triangle, taken in order; their resultant may be represented in magnitude and direction by the third side of the triangle, taken in opposite order.”

## What is the use of parallelogram law?

The parallelogram law of vector addition is used to add two vectors when the vectors that are to be added form the two adjacent sides of a parallelogram by joining the tails of the two vectors. Then, the sum of the two vectors is given by the diagonal of the parallelogram.

## Who discovered parallelogram law?

Newton’s proof of the parallelogram of force Suppose two forces act on a particle at the origin (the “tails” of the vectors) of Figure 1.

## What is the parallelogram law of forces and prove it?

The law of parallelogram of two forces states that if two vectors acting on a particle at the same time are represented in magnitude and direction by two adjacent sides of a parallelogram drawn from point their resultant is represented by the diagonal of the parallelogram drawn from the same point.

## What is resultant of vector?

The resultant is the vector sum of two or more vectors. It is the result of adding two or more vectors together. If displacement vectors A, B, and C are added together, the result will be vector R. As shown in the diagram, vector R can be determined by the use of an accurately drawn, scaled, vector addition diagram.

## What is the formula of vector addition?

What is the Formula For the Addition of Vectors? This is the formula for the addition of vectors: Given two vectors a = (a1, a2) and b = (b1, b2), then the vector sum is, M = (a1 + b1, a2 + b2) = (Mx, My).

## What is the parallelogram law of addition of forces?

If two forces acting at a point are represented both in magnitude and direction by the two adjacent sides of a parallelogram then their resultant is represented by the diagonal of the parallelogram drawn from the same point.

## What is the formula of resultant vector?

R = A + B. Formula 2 Vectors in the opposite direction are subtracted from each other to obtain the resultant vector. Here the vector B is opposite in direction to the vector A, and R is the resultant vector.

## How do you find a vector of a parallelogram?

## What are the 3 types of equilibrium?

There are three types of equilibrium: stable, unstable, and neutral. Figures throughout this module illustrate various examples.

## What is vector rule?

Triangle law of vector addition states that when two vectors are represented as two sides of the triangle with the order of magnitude and direction, then the third side of the triangle represents the magnitude and direction of the resultant vector.

## What is the law of polygon?

Polygon law of vector addition states that if a number of vectors can be represented in magnitude and direction by the sides of a polygon taken in the same order, then their resultant is represented in magnitude and direction by the closing side of the polygon taken in the opposite order.

## What is resultant of a force?

The resultant force is described as the total amount of force acting on the object or body along with the direction of the body. The resultant force is zero when the object is at rest or it is traveling with the same velocity as the object.

## What is a vector diagram?

Vector diagrams are diagrams that depict the direction and relative magnitude of a vector quantity by a vector arrow. Vector diagrams can be used to describe the velocity of a moving object during its motion. For example, a vector diagram could be used to represent the motion of a car moving down the road.

## What are resolution of forces?

Resolution of forces is a process of splitting the forces or dividing the forces into two or more parts which ultimately creates the same effect on the body that the single force would have created. Resolution of forces helps us in analyzing motion separately in different directions.

## What is resolution of a vector?

The process of splitting a vector into its components is called resolution of the vector. The components, when added vectorially, will yield the same vector. Generally, we resolve a vector into three components viz. component along the x-axiscalled x-component. component along the y-axis called y-component.

## What is the magnitude of vector?

The magnitude of a vector formula is used to calculate the length for a given vector (say v) and is denoted as |v|. So basically, this quantity is the length between the initial point and endpoint of the vector.

## What is the definition of zero vector?

Definition of zero vector : a vector which is of zero length and all of whose components are zero.

## What are the 4 types of parallelograms?

What are the 4 types of parallelogram? There are 4 types of parallelograms, including 3 special types. The four types are parallelograms, squares, rectangles, and rhombuses.

## What is another name for a parallelogram?

- quadrilateral.
- rectangle.
- rhombus.
- square.

## What are the 7 properties of parallelogram?

- Opposite sides are parallel.
- Opposite sides are congruent.
- Opposite angles are congruent.
- Same-Side interior angles (consecutive angles) are supplementary.
- Each diagonal of a parallelogram separates it into two congruent triangles.
- The diagonals of a parallelogram bisect each other.