Question

Contact Force and its application
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Answer 1

Answer:

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Applied contact forces: This is a force that is exerted on an object by another object or a person and executed through physical contact. Example: When a person pushes a table, it is required to touch the table (directly or indirectly.

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Answer 2

Answer:

Explanation:

A contact force is any force that requires contact to occur.[1] Contact forces are ubiquitous and are responsible for most visible interactions between macroscopic collections of matter. Moving a couch across a floor, pushing a car up a hill, kicking a ball or pushing a desk across a room are some of the everyday examples where contact forces are at work. In the first case the force is continuously applied by the person on the car, while in the second case the force is delivered in a short impulse. Contact forces are often decomposed into orthogonal components, one perpendicular to the surface(s) in contact called the normal force, and one parallel to the surface(s) in contact, called the friction force.

Examples of contact forces include:

Reaction force. An object at rest on a surface experiences reaction force . ...  

Tension. An object that is being stretched experiences a tension force. ...  

Friction. Two objects sliding past each other experience friction forces. ...  

Air resistance.

Hope it helps you.