00:01
This question, the ropes a, b and c, a, d can support a maximum tension of 600 newtons and we know that the angle teta is being given to us as 40 degrees.
00:13
So we remind the largest mass at c that can be supported without exceeding the allowable tension and the angle alpha as well for the equilibrium.
00:23
Let's say the tension p with which we are pulling is t over here.
00:28
So this will definitely be t over here and this will have some other value.
00:33
Let's call it this as t1, this is t1 and this as t2.
00:37
All right.
00:37
So if this is an equilibrium, so first off, c will definitely have an mg over here.
00:42
And since everything is in equilibrium, so we should be having t1 same as mg.
00:49
Let's call it equation number one.
00:52
Okay.
00:53
And since the pulley is also in equilibrium, so now we need to make the components of the forces about the pulley.
01:00
So if you want to make the components of this tension force, let me just make the components.
01:05
So says this is theta, this is going to be t1 cost, even sign of teta.
01:12
And this component along t1 is going to be t1 cost of theta.
01:16
So why am i adding both? because they are in the same direction...