00:01
Hello students, here three forces are given and their orientation is also given.
00:06
We have to find the resultant force.
00:09
So the first force is 44 newton which is acting at an angle of 45 degree.
00:18
So this is f1 is equal to 44 newton at an angle 45 degree and the second force which is acting at an angle of 135 degree whose magnitude is f2 is equal to 29 newton.
00:38
So this is acting at an angle of 135 degree and the third force which is acting at an angle of 225 degree who has the magnitude 12 newton.
00:57
So the whole angle is 225 degree.
01:04
So for finding the resultant force first we have to calculate the x and y components of each forces.
01:10
So we have to calculate the x and y component of the forces f1, f2 and f3.
01:33
So for first force f1, so for f1, fx1 is equal to 44 cos 45 degree which is equal to 31 .11 newton and fy1 that is the y component of the force is equal to 44 sin 45 degree which is equal to 31 .11 newton.
02:07
Similarly we have to calculate for f2 and f3.
02:12
So for f2, f2x is equal to the force is 29 newton into cos 135 degree which is equal to minus 20 .51 newton and the y component of the force f2 is 29 sin 135 degree which is equal to 20 .51 newton and for the third force for f3, f3x is equal to 12 cos 225 degree which is equal to minus 8 .49 newton and the y component is equal to f3y that is equal to 12 sin 225 degree which is equal to minus 8 .49 newton...