00:01
Hi, in this question, part of a control linkage of an airplane consists of a rigid member cb and cable ab.
00:11
Now if the force is applied to the end b of the member and it causes a normal strain in the cable of 0 .00360 mm per mm, we have to determine the displacement of point b.
00:34
So we have to calculate the value of displacement.
00:38
So here this angle is given as theta.
00:43
So the displacement will be this particular distance.
00:46
So let this particular this point be b dash.
00:50
So we'll have this distance as delta b.
00:55
Now length of ab, this length can be calculated as under root.
01:02
So we have this as 800, this as 600.
01:05
So it will be 800 square plus 600 square, which gives this value as 1000 millimeter.
01:12
Now, epsilon e can be calculated as ab minus ab dash divided by ab.
01:20
So we can write this as 1000 minus ab dash divided by 1000.
01:29
And this is equals to the strain...