- #1
hms.tech
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Here is a text from my Physics Book :
The net external torque on the object about any axis must be zero for it to be in rotational equilibrium.
I divide the torques into two categories, anticlockwise and clockwise. (This approach works fine for 2-D objects but will it work for 3-D objects as well ?)
I think i found an error in my book or it might be possible that there is something wrong with my judgment. There was this quick quiz question and it asked whether the object is in rotational equilibrium.
I say no, it shouldn't and i can prove it :
Consider the black spot as the pivot and if i were to take moments about this point of the two forces, i would find that [itex]F_{1}[/itex] and [itex]F_{2}[/itex] each provide a clockwise torque !
Yes i agree that the net torque about their point of intersection will be zero but not about the black spot(which also lies in the object)
The net external torque on the object about any axis must be zero for it to be in rotational equilibrium.
I divide the torques into two categories, anticlockwise and clockwise. (This approach works fine for 2-D objects but will it work for 3-D objects as well ?)
I think i found an error in my book or it might be possible that there is something wrong with my judgment. There was this quick quiz question and it asked whether the object is in rotational equilibrium.
I say no, it shouldn't and i can prove it :
Consider the black spot as the pivot and if i were to take moments about this point of the two forces, i would find that [itex]F_{1}[/itex] and [itex]F_{2}[/itex] each provide a clockwise torque !
Yes i agree that the net torque about their point of intersection will be zero but not about the black spot(which also lies in the object)