The discussion revolves around the relationship between torque and energy, specifically the units used to measure them, and the conceptual differences between torque and energy in the context of physics. Participants explore the definitions, units, and implications of measuring torque in Joules versus Newton-meters, as well as the application of these concepts in various scenarios, including linear and rotational motion.
Participants do not reach a consensus on whether torque should be measured in Joules or Newton-meters, and there are competing views on the definitions and implications of torque and energy. The discussion remains unresolved regarding the appropriate context for using these units.
Participants express uncertainty about the definitions of displacement in the context of torque and energy, and there are unresolved questions about the application of these concepts in rotational mechanics versus linear mechanics.
I only studied torque in electromagnetism, what I know about is that when two equal forces opposite in direction and have different line of actions act on a coil, it's affected by a torque.A.T. said:There is only one force in the definition of torque. So what "two forces" are you taking about?
Haven't you studied this?ElmorshedyDr said:I only studied torque in electromagnetism, what I know about is that when two equal forces opposite in direction and have different line of actions act on a coil, it's affected by a torque.
No, I didn't study Torque in a mechanics class, it was a physics class and specifically in electromagnetism.adjacent said:Haven't you studied this?
You are thinking of a couple, where two forces are used to create a torque without producing a net force. See: http://en.wikipedia.org/wiki/Couple_(mechanics)ElmorshedyDr said:I only studied torque in electromagnetism, what I know about is that when two equal forces opposite in direction and have different line of actions act on a coil, it's affected by a torque.
ThanksDoc Al said:You are thinking of a couple, where two forces are used to create a torque without producing a net force. See: http://en.wikipedia.org/wiki/Couple_(mechanics)
Is the energy done by a couple is equal to zero ?Doc Al said:You are thinking of a couple, where two forces are used to create a torque without producing a net force. See: http://en.wikipedia.org/wiki/Couple_(mechanics)
Why should it be zero?ElmorshedyDr said:Is the energy done by a couple is equal to zero ?
I have no idea about rotational mechanics, linear only.adjacent said:Why should it be zero?
If the rod starts rotating,it gains rotational kinetic energy.
ElmorshedyDr said:I have no idea about rotational mechanics, linear only.