Hey there! We receieved your request
Stay Tuned as we are going to contact you within 1 Hour
One of our academic counsellors will contact you within 1 working day.
Click to Chat
1800-5470-145
+91 7353221155
Use Coupon: CART20 and get 20% off on all online Study Material
Complete Your Registration (Step 2 of 2 )
Sit and relax as our customer representative will contact you within 1 business day
OTP to be sent to Change
sir, i am finding it very difficult to draw free body diagrams. pls help.
dear vivek,
Before you start to draw fre body diagram clearly state identify your System(The body to which you want to draw FBD).
And then remove everything other than system and draw the figure.
Now identify the active forces on the body(Gravitational force,Externally applied loads)
In Free body diagram along with active forces you've to show the reactions exerted ON the body BY the external elements.
Though many a times direction of reactive force is confusing so follow the above statement(on-by).Eventhough you give an opposite direction it doesnt effect your final answer.
You must've known about some basic reaction forces like hinge reactions and fixed joint reaction.
As per 12th standard i've explained an example below.
Now suupose u are drawing FBD of block having mass 'm' and also assume that if is moving down with accelaration 'a'.
then as I stated, first select your system(here sytem is block).
Now active forces--> Here, only external force is gravitational force
Reactive forces: The surface in which block is lying will exert a normal reaction force'N'.As the block is sliding down with an accelaration 'a' have the frictional force between block and suface will oppose its motion . Hence frictional force 'f' is shown.
The inertia force will also come into play . because of accelaration of body and always it acts opposite directionto accelaration and having magnitude= m*a
If U want FBD for any particular question feel free to post.You can also refer to any good physics book like H C verma
thanks and regards,
dilipreddy.
Get your questions answered by the expert for free
You will get reply from our expert in sometime.
We will notify you when Our expert answers your question. To View your Question
Win Gift vouchers upto Rs 500/-
Register Yourself for a FREE Demo Class by Top IITians & Medical Experts Today !