00:01
First we will equate the sum of the forces along the x -axis to the resultant force.
00:15
So we can write this, the resultant force is equal to the summation of force along the z -axis.
00:24
So here we can write minus f -r.
00:27
This will be equal to minus 30, minus 20, minus 90, minus 90, minus 90.
00:32
90 minus force a minus force b by solving these here we will get f a minus f b plus f r this will be this will be minus is equal to the 140 take this as a equation number one now we will equate the momentum moment of the forces and resultant force along the x -axis.
01:14
So here we can write this the momentum of force along the x -axis.
01:22
This will be equal to summation of the momentum of force along the x -axis.
01:28
So here we can write this resultant force multiply by 3 .25.
01:35
This will be equal to f .a.
01:39
Multiplied by this will be 5 .75 plus 30 multiplied by 0 .75 plus 90 multiply by 3 .25 plus 20 multiply by 3 .25 plus 20 multiplied by 0 .25 plus 20 multiplied by 0 .25 plus 20...