Ok....
*contact force*
the force which can be exerted by the object on another object by only through physical touching is called a contact force
example:~(1)muscular force
(2)frictional force

*non contact force*
the force which can be extracted by an object on another object every from distance without touching each of other is called a nonthe force which can be extracted by an object on another object every from distance without touching each of other is called a non contact force
example:~(1)magnetic force
(2)gravitational force
(3)electrostatic force

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Contact Force:
Contact force is a type of force that arises when two objects come in direct physical contact with each other. It is a force that acts at the point of contact between the two objects. Contact forces require physical contact to occur and can be either attractive or repulsive in nature.

Examples of Contact Force:
1. Friction: Friction is a type of contact force that resists the relative motion between two surfaces in contact. When we rub our hands together, the force of friction opposes the motion and generates heat. Without friction, it would be difficult to walk or hold objects.

2. Normal Force: The normal force is the force exerted by a surface to support the weight of an object resting on it. For example, when we place a book on a table, the table exerts an upward normal force to balance the weight of the book.

3. Tension Force: Tension is a contact force that is exerted when an object is pulled by a rope, string, or cable. When we pull a cart using a rope, the tension force is transmitted through the rope, keeping the cart moving.

4. Air Resistance: Air resistance is a contact force experienced by objects moving through the air. When a ball is thrown in the air, the air resistance opposes its motion, causing it to slow down and eventually fall to the ground.

Non-Contact Force:
Non-contact force is a type of force that acts between objects even when they are not in physical contact. These forces can act over a distance and do not require direct contact between the objects involved.

Examples of Non-Contact Force:
1. Gravitational Force: Gravitational force is a non-contact force that exists between any two objects with mass. It is the force that attracts objects towards each other. For example, the gravitational force between the Earth and the Moon keeps the Moon in orbit around the Earth.

2. Magnetic Force: Magnetic force is a non-contact force that acts between magnets or magnetic materials. Like poles repel each other, while opposite poles attract each other. This force is responsible for the interaction between magnets and the operation of devices like electric motors.

3. Electrostatic Force: Electrostatic force is a non-contact force that exists between charged objects. Like charges repel each other, while opposite charges attract each other. For example, when we rub a balloon against our hair, it becomes charged and can stick to walls due to the electrostatic force.

4. Nuclear Force: Nuclear force is a non-contact force that acts within the nucleus of an atom. It is responsible for holding the protons and neutrons together. This force is extremely strong but only acts at very short distances.

In conclusion, contact forces require physical contact between objects, while non-contact forces can act over a distance. Understanding these forces helps us explain various phenomena in the physical world.