WHAT IS A PSEUDO FORCE?

Hot goIITian

Posted on
2 Nov 2011 20:12:46 IST
Posts: 108
2 Nov 2011 20:12:46 IST
0 people liked this
2
1411 View Post
WHAT IS A PSEUDO FORCE?
Engineering Entrance , JEE Main , JEE Main & Advanced , Physics

PSEUDO FORCE

If a body is at rest or in uniform motion in a straight line it will continue to do so unless compelled by an external unbalanced force.

==> The above statement is valid only when you observe from non-accelerated frames.

==> If you observe the motion from earth , the above statement is valid at earth , so at earth above statement is known as NEWTON single quotes FIRST LAW.    


==> Mean above statement is a definition of frame in which law of Inertia is valid and these frames are known as Inertial frames (Non accelerated Frames)
    
==> Means If we are not observing the motion from inertial frame ,above statement will not valid.

==> Such  a frames are known as Non Inertial Frames (Accelerated Frame)

==> Actually Newton Wanted  to apply the above Condition (Give in the Statement) ,So he gives the concept of PSEUDO FORCE.

==> First of all you must know that PSEUDO FORCE is a Imaginary force ,it is not  a real force (Like ,Gravitational force ,Electromagnetic force ).

==> We will understand PSEUDO FORCE  through an .....

PSEUDO FORCE EXAMPLE:

                                

==> We have two observers A and B and two boxes A and B .Person B and box B are on Platform (at rest ) and Person A and Box A are in the train (At rest with respect to train).

==> Train is moving towards right with constant acceleration .

==> Now we will observe Boxes A and  B from two frames (train and Platform)

            

You can observe that from trainsinglequotes frame  is not valid(Quantitative relation between      and  , as said in NEWTONsinglequoteS first law).

=> Note 

You must know that Real Force on box A in the horizontal direction is static friction (fs) and  is acceleration of train .

=> Newton introduced PSEUDO force so that one could apply   , even from accelerated frames(Non Inertial Frames)

=> SEE HOW : 

If person A observe Box A...........
        , From expression (1)

                                        

Note:

(-) Sign shows that  is towards left.

==> Now you can observe PSEUDO FORCE when person (A) observe box (B)

            
 
In this way we can understand How to apply PSEUDO force.

LIKE THIS ARTICLE IF YOU FIND IT USEFUL!

Some of The Related Articles:

Stat-Delta Method To Solve Circuits

Magic of Natural No's Squares

Kaprekar Transformation for 3-Digit Numbers


Comments (2)


New kid on the Block

Joined: 6 Nov 2011 21:00:31 IST
Posts: 2
6 Nov 2011 21:21:52 IST
0 people liked this

BEST EXPLAINED TOPIC THAT I HAVE EVER SEEN

Hot goIITian

Joined: 31 Aug 2011 19:09:00 IST
Posts: 108
7 Nov 2011 08:09:40 IST
0 people liked this

THANK U DUDE!



Quick Reply


Reply

Some HTML allowed.
Keep your comments above the belt or risk having them deleted.
Signup for a avatar to have your pictures show up by your comment
If Members see a thread that violates the Posting Rules, bring it to the attention of the Moderator Team
Free Sign Up!
Sponsored Ads

Preparing for JEE?

Kickstart your preparation with new improved study material - Books & Online Test Series for JEE 2014/ 2015


@ INR 5,443/-

For Quick Info

Name

Mobile

E-mail

City

Class

Vertical Limit

Top Contributors
All Time This Month Last Week
1. Bipin Dubey
Altitude - 16545 m
Post - 7958
2. Himanshu
Altitude - 10925 m
Post - 3836
3. Hari Shankar
Altitude - 10085 m
Post - 2217
4. edison
Altitude - 10825 m
Post - 7804
5. Sagar Saxena
Altitude - 8635 m
Post - 8064
6. Yagyadutt Mishr..
Altitude - 6330 m
Post - 1958