00:01
First, writing the given data, given that p is equal to 250 newton, muus is given as 0 .35.
00:14
K is given as 15 kilo -neuton per meter.
00:22
Now drawing free body diagram of wage.
00:28
So drawing the free body diagram of the wage that is given in the problem.
00:37
And after that, we will write all the forces that are acting on it.
00:44
So here it is p, here f .a and here, n .a is acting.
00:56
This angle is 10 degree.
00:58
Here fb is working and here nb is acting.
01:06
Now going forward we can write fb is equal to musnb and fa as mus na.
01:17
So from equilibrium equation we can solve summation of fy is equal to 0.
01:27
On solving, we can write the equation like i am writing here.
01:34
So after that, we will solve this equation.
01:38
So we can write on next step as nb is equal to n a cost 10 degree minus mu as sine 10 degree.
01:49
So n a into cost 10 degree minus 0 .35 sine 10 degrees.
01:57
We just put the value of mu s here.
02:00
So nb is equal to 0 .9 to 4 n .a...