Question

what are force and explain about of force​

Answer 1

your answer

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 (which includes to begin moving from a state of rest), i.e., to accelerate. Force can also be described intuitively as a push or a pull. A force has both magnitude and direction, making it a vector quantity. It is measured in the SI unit of newtons and represented by the symbol F.

Force

Force examples.svg

Forces can be described as a push or pull on an object. They can be due to phenomena such as gravity, magnetism, or anything that might cause a mass to accelerate.

Common symbols

F→, F, F

SI unit

newton (N)

Other units

dyne, pound-force, poundal, kip, kilopond

In SI base units

kg·m/s2

Derivations from

other quantities

F = m a

Dimension

{\displaystyle {\mathsf {LMT}}^{-2}} {\displaystyle {\mathsf {LMT}}^{-2}}

The original form of Newton's second law states that the net force acting upon an object is equal to the rate at which its momentum changes with time. If the mass of the object is constant, this law implies that the acceleration 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 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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Answer 2

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Force:

Force is a physical quantity defined as a push or pull on a body. Force is an external agent in the form of push or pull. force can be different types and can produce different effects. force is always applied in a particular direction.

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Types Of Force:

As we know that force is a push or pull. It is caused by the interaction of two objects. as soon as this interaction ceases, the object no longer experience the force.

Some forces can be felt easily, while others are difficult to spot. Different types of interactive forces can be categorised as non- contact and contact force.

Contact Forces:

This forces come into play only when bodies are in contact with each other. For example, when one body is sliding over another, contact forces are acting between them. Whether the bodies will move slow or fast will depend on the magnitude of contact force acting on them. Some important Contact Forces are:

✵Muscular Force

✵Muscular Force

Non-Contact Forces:

These are the forces that come into play when interacting bodies are not in contact with each other or at a distance. it is also referred to as action at a distance. Some important Non- Contact Forces are:

✵Gravitational Force

✵Electrostatic Force

✵Magnetic Force

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