Contact.
contact
Friction is a contact force, not a non-contact force. It occurs when two surfaces are in contact with each other and opposes the relative motion between them.
Friction is a contact force that occurs when two surfaces rub against each other. It opposes the motion of an object and is caused by the interactions between the molecules in the two surfaces.
The three contact forces is push or pull or friction & the non contact force is gravity & magnitism.
Friction is a contact force because it occurs when two surfaces come into contact and interact with each other. It resists the motion or attempted motion of objects that are in contact with each other.
Friction, magnetism, and electricity are contact forces because they require direct contact between objects to be exerted. Gravity, on the other hand, is a non-contact force that acts over a distance without the need for direct contact between objects.
Contact forces involve direct physical contact between objects, such as friction and normal force. Non-contact forces act at a distance without physical contact, such as gravity, electrostatic, and magnetic forces.
A driving force can be both contact and non-contact. For example, a contact driving force could be the friction between a car's tires and the road that allows it to move forward. A non-contact driving force could be the gravitational pull of the Earth that keeps a satellite in orbit.
contact forces: Push, pull, friction, strain. Non-contact forces : Magnetic, gravitational and electrostatic
Well, darling, non-friction is basically a fancy term for a situation where two surfaces are sliding past each other without any resistance. It's like when you're trying to slide into a pair of tight jeans after Thanksgiving dinner - no friction means no struggle. So, in a nutshell, non-friction is just smooth sailing with no drama between surfaces.
water resistance is contact force.
Contact forces involve direct physical interaction between objects, such as friction or tension, while non-contact forces act at a distance, such as gravity or magnetic force. Contact forces are mediators introducing reaction force and normal forces, whereas non-contact forces involve no physical touch between objects.