what do you understand by the term force name the instrument by which the force is measured describe in short about various forces
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In physics, a force is any interaction that, when unopposed, will change the motion of anobject.[1] A force can cause an object withmass to change its velocity (which includes to begin moving from a state of rest), i.e., toaccelerate. Force can also be described intuitively as a push or a pull. A force has bothmagnitude and direction, making it a vectorquantity. It is measured in the SI unit ofnewtons and represented by the symbol
Forces are also described as a push or pull on an object. They can be due to phenomena such asgravity, magnetism, or anything that might cause a mass to accelerate.
Common symbols
F, FSI unitnewton (N)In SI base units1 kg·m/s2
Derivations from
other quantities
F = m a
The original form of Newton's second lawstates that the net force acting upon an object is equal to the rate at which its momentumchanges with time. If the mass of the object is constant, this law implies that the accelerationof an object is directly proportional to the net force acting on the object, is in the direction of the net force, and is inversely proportional to the mass of the object.
Concepts related to force include: thrust, which increases the velocity of an object; drag, which decreases the velocity of an object; andtorque, which produces changes in rotational speed of an object. In an extended body, each part usually applies forces on the adjacent parts; the distribution of such forces through the body is the internal mechanical stress. Such internal mechanical stresses cause no acceleration of that body as the forces balance one another. Pressure, the distribution of many small forces applied over an area of a body, is a simple type of stress that if unbalanced can cause the body to accelerate. Stress usually causes deformation of solid materials, or flow in fluids.
Forces are also described as a push or pull on an object. They can be due to phenomena such asgravity, magnetism, or anything that might cause a mass to accelerate.
Common symbols
F, FSI unitnewton (N)In SI base units1 kg·m/s2
Derivations from
other quantities
F = m a
The original form of Newton's second lawstates that the net force acting upon an object is equal to the rate at which its momentumchanges with time. If the mass of the object is constant, this law implies that the accelerationof an object is directly proportional to the net force acting on the object, is in the direction of the net force, and is inversely proportional to the mass of the object.
Concepts related to force include: thrust, which increases the velocity of an object; drag, which decreases the velocity of an object; andtorque, which produces changes in rotational speed of an object. In an extended body, each part usually applies forces on the adjacent parts; the distribution of such forces through the body is the internal mechanical stress. Such internal mechanical stresses cause no acceleration of that body as the forces balance one another. Pressure, the distribution of many small forces applied over an area of a body, is a simple type of stress that if unbalanced can cause the body to accelerate. Stress usually causes deformation of solid materials, or flow in fluids.
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A force is a push or pull upon an object resulting from the object's interaction with another object.
A force meter is used to measure forces. Forces can be measured using a force meter. Force meters contain a spring connected to a metal hook. The spring stretches when a force is applied to the hook.
A force meter is used to measure forces. Forces can be measured using a force meter. Force meters contain a spring connected to a metal hook. The spring stretches when a force is applied to the hook.
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