Question

Explain types of force

Answer 1

hey dude....!
here is ur answer....!

types of forces are........!!!!!!!!
Frictional Force
Gravitational Force Tension Force
Electrical Force
Normal Force
Magnetic Force
Air Resistance Force.
 Applied Force 
Spring Force 

explanation..::::::
Applied Force

 

Fapp

An applied force is a force that is applied to an object by a person or another object. If a person is pushing a desk across the room, then there is an applied force acting upon the object. The applied force is the force exerted on the desk by the person.

 

Gravity Force
(also known as Weight)

Fgrav

The force of gravity is the force with which the earth, moon, or other massively large object attracts another object towards itself. By definition, this is the weight of the object. All objects upon earth experience a force of gravity that is directed "downward" towards the center of the earth. The force of gravity on earth is always equal to the weight of the object as found by the equation:

Fgrav = m * gwhere g = 9.8 N/kg (on Earth)

and m = mass (in kg)



Normal Force

Fnorm

The normal force is the support force exerted upon an object that is in contact with another stable object. For example, if a book is resting upon a surface, then the surface is exerting an upward force upon the book in order to support the weight of the book.

Friction Force
Ffrict

The friction force is the force exerted by a surface as an object moves across it or makes an effort to move across it. There are at least two types of friction force - sliding and static friction. Though it is not always the case, the friction force often opposes the motion of an object. For example, if a book slides across the surface of a desk, then the desk exerts a friction force in the opposite direction of its motion.

Ffrict = µ • Fnorm


Air Resistance Force
Fair

The air resistance is a special type of frictional force that acts upon objects as they travel through the air. The force of air resistance is often observed to oppose the motion of an object. This force will frequently be neglected due to its negligible magnitude (and due to the fact that it is mathematically difficult to predict its value).

Tension Force
Ftens

The tension force is the force that is transmitted through a string, rope, cable or wire when it is pulled tight by forces acting from opposite ends. The tension force is directed along the length of the wire and pulls equally on the objects on the opposite ends of the wire.

Spring Force

Fspring

The spring force is the force exerted by a compressed or stretched spring upon any object that is attached to it. An object that compresses or stretches a spring is always acted upon by a force that restores the object to its rest or equilibrium position. For most springs (specifically, for those that are said to obey "Hooke's Law"), the magnitude of the force is directly proportional to the amount of stretch or compression of the spring.



thanks..!

Answer 2

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WHAT IS FORCE ?

• It is a push or pull on an object that produces acceleration in the body on which it acts.

• S.I. UNIT : Newton

• A force can do 3 things on a body :-

1. It can change the speed of a body.

2. It can change the direction of motion of a body.

3. It can change the shape and size of the body.

TYPES OF FORCES LISTED BELOW :-

I) BALANCED FORCE :

• When the forces acting on a body body from the opposite direction do not change the state of rest or of motion of an object, such forces are called balanced forces.

II) UNBALANCED FORCE :

• When two opposite forces acting on a body move a body in the direction of the greater force or change the state of rest, such forces are called as unbalanced force.

III) FRICTIONAL FORCE :

• The force that always opposes the motion of object is called force of friction.