00:02
So here, during angular mission, what is the relationship between the length of the moment arm and the torque created? so there is one assumption that force is used as constant.
00:12
So here i have drawn on the right hand side two rough diagrams.
00:16
So this one has the shorter arm length.
00:19
So the denotion will be, i will write it here.
00:21
The length is the denoted by l, which is the moment arm length.
00:28
And t is represented as torque and f is the force so this is the denoche this is the denote so that i will follow in this question so here this is the force applied on the end of this wrench to create the angular motion so the length of this is the l this is the shorter length and this one is the longer length.
01:05
So here i am going to use the torque formula to show that the relationship between the force and the movement arm length and the torque.
01:21
So the torque is given by torque is equal to force into movement arm length.
01:32
So as you can see the force is a constant value.
01:35
So we can write it as torque is directly proportional to the moment arm length so if you want to increase the torque means if you want to increase the torque you need to increase the moment arm length so here in the option it is given that the first option the shorter the moment arm the the greater the torque so this one so as you can see if the length is shorter the force that you apply is also shorter why because the length value is small so you will get the less value so suppose if i say they here the length ls is equal to one meter right so you will get t is equal to f into 1 which is equal to 1f here i can consider the l is equal to 2 and you will get the value as t is equal to f into the force into the length is two units.
02:40
So we'll get 2f...