00:02
Hello guys in this problem we have a block of weight 720 nons is being suspended by two cables the angle theta 1 equals the angle theta 2 that is of 60 degrees we have to find out the tension t 1 and t 2 now if you draw the force diagram the forces acting are the weight of the block along the downward direction the tension t 1 along the the left cable and the tension t2 along the right cable.
00:45
If this angle is theta, then this angle will also be theta 1.
00:53
For the single as theta, this angle will be 90 minus theta 2.
01:00
Define along the horizontal as positive x and along vertical as positive y.
01:08
At equilibrium, the net force along x will be 0, which means t2, cos theta 2 equals t1, cos theta 1, sorry, t1, sine theta 1, because the angle with vertical for the left cable is theta 1.
01:45
Now, theta, theta, 2, 2, equal...