how to draw a Free body diagram in mechanics

 💢 Free body diagram 

what do you mean by free body diagram ?

It is a diagramatic representation of all the forces acting on a body or a system of a body .

How do you make a free body diagram ?

To draw a free body diagram of a body  draw all the forces acting on a body . After doing this reslove the 

component of forces in the X and Y direction . 

  

draw the free body diagram of these block 

2.  draw the free body diagram of given block of mass m .

Draw the free body diagram of given block 

 ・here normal force N1 is acting because of contact between block   M1 and ground .

・normal force N2 is acting because of contact between two block .

・gravitational force is acting vertically downward because of gravity .

3. Draw the free body diagram of  given diagram 

4. Draw the free body diagram of ladder 

Here f is a frictional force acting on the ladder in the opposite direction of motion of ladder 

Draw the free body diagram of this system 

Draw the free body diagram of both the block shown in the fig.

Draw the free body diagram of given diagram 

This is a free body diagram of different pulley connected to the block of mass M  and mass m . 

Resolution of forces 

here is a ways how to resolve the component of forces .

resolution of forces means braking the forces into two component 

1. Along x axis 

2. Along Y axis 

Here is an example for understanding of resolution of forces 

In this example F force is acting on the block at an angle Ө . 

I hope this will helpful for you 

please comment and share so that many one get benefited.

SUMAN KUMAR