00:01
Hi, this is a question based on calculating the reaction bending moment and shear force.
00:07
So now we have to take the moment along so force along y -axis is taken as zero.
00:13
So we have this is equal to 4 into so 10 into 4 plus 12 into 4 minus 3 is equal to rb into 4 meter.
00:23
So by this calculation we have rb as 21 .25 kilo newton and we have so kilo newton then we have to take the vertical forces that is so here we have to take in the second step vertical forces.
00:41
So vertical forces can be given by ra plus rb minus 10 into 4 minus 12 is equal to zero.
00:50
So we know rb substituting rb we have ra is equal to 6 .75 kilo newton.
00:56
So this is the force at b and this is the force at a.
00:59
Now we have to determine the shear force.
01:02
So now we have to determine the shear force.
01:06
So taking shear force we have v is equal to ra minus 10 into x.
01:11
So now the bending moment is given by so bending moment is given by so this is for the segment of a b where zero less than x less than 4.
01:26
So we have bending moment is given by it is ra into x minus 10 into x square by 2 minus 12 into x minus 4...