What is meant by transmissibility of forces?

The principle of transmissibility states that the point of application of a force can be moved anywhere along its line of action without changing the external reaction forces on a rigid body. Therefore, the points of application of forces may be moved along the line of action to simplify the analysis of rigid bodies.

What is the law of polygon of forces?

The Law of Polygon of Forces states that – if any number of coplanar concurrent forces can be represented in magnitude and direction by the sides of a polygon taken in order; then their resultant will be represented by the closing side of the polygon taken in opposite order”.

What is principle of physical independence of vectors?

The physical independence principle: It states that the effect of a force on a body is not affected by the presence of other forces. So when a body is at rest or is moving with uniform velocity net force acting on it is zero. When an unbalanced force acts on it, the body moves in the direction of force.

What is the principle of superposition of forces?

The principle of superposition of forces in electrostatics states that when a number of charges are interacting, the electrostatic force between two charges is not affected by the existence of the other charges and the total electrostatic force on a charge is the vector sum of all the forces due to other charges.

What are characteristics of forces?

Characteristics of Force:

• Forces are due to an interaction of at least two objects.
• It may change the state of motion of an object.
• It may change the shape of an object.
• Forces applied on an object in the same direction add to one another and the resultant is in the same direction.

What are different types of coplanar forces?

Coplanar force systems have all the forces acting in in one plane. They may be concurrent, parallel, non-concurrent or non-parallel.

What is the law of Moment?

The Principle of Moments states that when a body is balanced, the total clockwise moment about a point equals the total anticlockwise moment about the same point. Equation. Moment =force F x perpendicular distance from the pivot d.

What is Moment force?

The Moment of a force is a measure of its tendency to cause a body to rotate about a specific point or axis. This is different from the tendency for a body to move, or translate, in the direction of the force. It is defined as the product of the force (F) and the moment arm (d).

What is composition of force?

Net force (also known as resultant force) is the overall force acting on an object when all the individual forces acting on the object are added together. The net force is a vector produced when two or more forces act on a single object.

What is the principle of physical independence of projectile motion?

(1) The motion of a projectile is a two-dimensional motion. This is called the principle of physical independence of motions. (2) The velocity of the particle can be resolved into two mutually perpendicular components. Horizontal component and vertical component.

What is the principle of superposition answers?

The superposition principle states that when two or more waves overlap in space, the resultant disturbance is equal to the algebraic sum of the individual disturbances.

What are the system of forces?

When a mechanics problem or system has more than one force acting, it is known as a ‘force system’ or ‘system of force’. When the lines of action of all the forces of a system act along the same line, this force system is called collinear force system.

Are there any limits to the measurement of corruption?

One of the recognised limits of aggregate perception data is that most factors that predict perceived corruption, such as level of economic development, state of democracy, press freedom and so forth, do not correlate well with available measures of actual corruption experiences (Triesman 2007).

How is the corruption index based on perception?

While this index is not based on perceptions, it provides more of a risk assessment than a measure of the actual level of corruption.

Why do people have different views on corruption?

After all, people’s opinions are affected by many factors, and their views on corruption may not be primarily informed by actual experience of corruption (Johnston, 2002; Olken, 2009).