00:01
Hello student here the question is given and in this question we have to say which class of lever system belong to the given activities.
00:10
So if we talk about the class of lever system there are the three class.
00:15
So this is class one, class two type and the class three type.
00:21
So there are the three type of lever system and these are the one, two and three.
00:27
So if we talk about the nymonics of this, there's the f, l, e.
00:32
So these f represented for the fulgram and these l for the load and these e for effort.
00:43
So if f is in the middle then it could be the first type of class type of lever system.
00:50
And if this load is in the middle then this is the second type of the class and this effort is in the middle.
00:57
Then this could be the class third type of class of lever system so these are the position of these three so if all these are in the middle then this should be belonged to the one two and three depending on the way in which one is having the middle position if fulcrum in the middle then it should be the first class and if this load is present between these two then it is two class two type of liver system and if this effort is in middle position then it is third type of class of liver system so here two activity is given first activity is given which is the having the soleus muscles so these soleus muscle planter flaxes the food so in this case these are the class 2 type because here the weight of food weight of food and this is a load so this is at the middle position so as we earlier discussed if load in the middle position then it is belonged to the class 2 type class 2 lever system and another one effort is here in this case effort should be the contraction of muscles contraction of solace muscle and fulcrum is the ball of foot fulcrum this is ball of the foot and if we talk about the second activity so second activity is given which is the triceps brachy and these tricep brachy is strain during push -up.
03:18
So in this case the effort is in middle position...