00:01
Hello students.
00:02
So in this question we have to draw the free body diagram for each of the boxes and also for the whole system given that the force on the box is 100 newton.
00:13
We also have to find out the total acceleration of the system.
00:17
So let's start.
00:19
First we'll draw the free body diagram for each box.
00:26
Free body.
00:32
So let's start with the first.
00:37
So box a.
00:40
So, so.
00:41
First let's balance out the forces so the first force acting on the body is its weight now because it is placed on the ground of course there will be a normal reaction to it now we have been given the force of 100 newton f on the body now because there's a box b placed at right next to it there's a resistive force from the box are but in this case the value of r will be 0 as friction is negligible.
01:33
So, how we can say r1? so this is the free body diagram for box a.
01:45
Now let's go for box b.
01:56
So let's balance out the forces.
01:59
In this case also, the first force is its fate and the second is the normal reaction.
02:08
Now, because the boxes are attached to each other, the force will be the same for this...