00:01
So here we are considering about a extended beam which is represented by ab from here.
00:04
This is the point a, this is the point b.
00:07
This distance from here is given that is equal to 5 meter and those who are not there, that is equal to 7 meter.
00:14
So this from here is equal to 5 meter.
00:17
This is rotating here in this way that is equal to 900 newton meter.
00:22
This is the force from here is acting that is of 300 newton.
00:26
This is the point a from here.
00:29
So from here we can say that let's say tangent of theta is equal to 5 that is divided by 12 that is equal to perpendicular divided by the base.
00:38
Simplifying the term theta from here becomes equal to tangent inverse of 5 that is divided by 12.
00:43
Simplifying the term we get the value of theta that is equal to 22 .61.
00:47
Now we are considering about ac.
00:49
Ac is equal to 12 divided by the cos of 22 .61 that is equal to 12 .99 that is almost equal to 12.
00:57
We are considering about bc that is equal to 7 divided by the cos of 32 .61.
01:03
It's 22 .61.
01:07
Simplifying the term we get the value of bc that become equal to 7 .58...