Question

what is force ?
what is friction?​

Answer 1

1.WHAT IS FORCE?

ANS:-In physics, a force is an influence that can 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. A force has both magnitude and direction, making it a vector quantity. 

2.WHAT IS FRICTION?

ANS:-Friction is the force resisting the relative motion of solid surfaces, fluid layers, and material elements sliding against each other. There are several types of friction: Dry friction is a force that opposes the relative lateral motion of two solid surfaces in contact. 

Answer 2

Force

• A force is a physics term denoting an effect that can alter an object's motion.
• A force can cause a mass item to accelerate (e.g., from a standstill). A push or a pull is another way to think about force.
• A vector quantity is a quantity that has both magnitude and direction.
• The SI unit of newton is used to calculate it (N). The sign F stands for force (formerly P).

• It refers to a force's size. It is the total amount of forces operating on a body.
• Magnitude of force rises when two forces act in the same direction. It is the result of the interaction of the two forces.

Friction

• Friction is the force that prevents solid surfaces, fluid layers, and material components sliding against one another from moving in the same direction. Friction comes in several forms:

• A force opposing the relative lateral motion of two solid surfaces in contact is known as dry friction.
• Static friction (stiction) between non-moving surfaces and kinetic friction (friction between moving surfaces) are the two types of dry friction.
• Dry friction is caused by the interaction of surface characteristics, known as asperities, with the exception of atomic or molecular friction.

• The friction between layers of a viscous fluid moving relative to one another is referred to as fluid friction.