00:01
Hi, in this question we need to find the support reactions.
00:04
Also we need to find the moment at the point c.
00:09
This is the point c.
00:11
This is a simply supported p which is supported at the end a and b.
00:16
Let us consider ra is the reaction at the support a and rb is the reaction at the support b.
00:23
And these are the three concentrated loads acting on the simply supported beam.
00:28
For equilibrium, let us resolve the forces vertically.
00:34
That is, sigma fy is equal to 0.
00:41
What are the forces acting in the upper direction? this ra is acting in the upper direction and rb is also acting in the upper direction.
00:51
And what are the forces acting in the downward direction? 1 .5 kiloons plus 3 .2 kiloons plus 2 kiloons plus 2 .2 kiloons plus 2.
01:02
2 .4 kiloons.
01:06
On calculation we obtained, r a plus r b is equal to 7 .1 kiloons.
01:15
Let this be our equation number 1...