00:01
So let us start with this solution.
00:02
So first of all let us calculate the reaction r1.
00:06
So it would be equals to 300 multiplied by 30 divided by 2 plus 40 divided by 30 multiplied by 1800.
00:18
So it will comes out 6900 of lbf.
00:24
Now let us calculate the reaction 2.
00:27
That is r2.
00:28
So it will be equals to 300 into 30 divided by 2 minus of 10 by 30 multiplied by 1800.
00:39
This is equals to 3900 lbf.
00:44
So from here the value of a would be equals to, that is required ratio, will be 3900 divided by the 300 will comes out 13 n.
01:02
So by using this, moment of inertia i1 would be equals to 1 by 12 times of the mass, that is 3, multiplied by the r square, that means, r of cube, that means 1 cube.
01:18
So this will comes out 0 .25 n, that raise to the power 4.
01:25
Now similarly i2 will be equals to 1 by 12 into 1 into 3 to the power 3 will comes out 2 .25 n to the power 4...