write the definition of force and 1 newton's
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In physics, a force is any interaction that, when unopposed, will change the motion of an object.[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 F.
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 theacceleration of 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; and torque, 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 internalmechanical 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 causesdeformation of solid materials, or flow influids.
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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 theacceleration of 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; and torque, 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 internalmechanical 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 causesdeformation of solid materials, or flow influids.
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In physics, a force is any interaction that, when unopposed, will change the motion of an object. A force can cause an object with mass to change its velocity, i.e., to accelerate. Force can also be described intuitively as a push or a pull.
Newton's first lawof motion - sometimes referred to as the law of inertia. An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.
Newton's first lawof motion - sometimes referred to as the law of inertia. An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.
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