00:01
Hi, here in this given problem first of all the length of uniform beam, beam which is mentioned as ab.
00:14
Its length is given as 6 .0 meter.
00:23
It is being carried by the two persons, the persons a and b.
00:37
Its own weight acting at its center of mass c that is wb weight of the beam that is 25 newton in the first part of the problem force applied by the man a f a in upward direction this is given as 20 newton a load has been kept over here this is w wb, weight of the beam.
01:23
This is wl, the load applied, which is equal to 45 newton.
01:31
And suppose it is kept at a distance x from the left end of the beam.
01:39
So suppose it is kept at a distance x from a left end of the beam.
01:58
So using rotational equilibrium of the beam about about point b, the right end of the beam.
02:30
Clockwise torque created by f .a.
02:34
That will be equal to counterclockwise torque created by wb and w .l...