From: Pratik Narain Srivastava (pratik.narain_at_gmail.com)
Date: Tue May 26 2020 - 13:34:55 CDT
Negative force is fundamentally wrong. It just means that motion resulting
from the force is in a specific direction from the observers' frame of
reference.
On Tue, May 26, 2020, 11:53 PM Souvik Dey <sdey8_at_uic.edu> wrote:
> Thanks! But does that mean having a negative force is something wrong or
> is it perfectly normal?
>
> On Tue, May 26, 2020 at 1:17 PM Gumbart, JC <gumbart_at_physics.gatech.edu>
> wrote:
>
>> Your interpretation is correct. Positive and negative just mean either
>> in the direction of pulling or opposite that direction.
>>
>> Best,
>> JC
>> ------------------------------
>> *From:* owner-namd-l_at_ks.uiuc.edu <owner-namd-l_at_ks.uiuc.edu> on behalf of
>> Souvik Dey <sdey8_at_uic.edu>
>> *Sent:* Friday, May 22, 2020 5:40 PM
>> *To:* NAMD list <namd-l_at_ks.uiuc.edu>
>> *Subject:* namd-l: Negative Forces in SMD Simulations
>>
>> Dear NAMD users,
>>
>> I think this is a really naive question but is bothering me a lot.
>>
>> According to the SMD tutorial, the force can be negative if the extension
>> of the SMD atom is greater than distance between the constraint points. How
>> would that be theoretically possible? Does this mean that the spring
>> gets recoiled?
>>
>>
>> Regards,
>> Souvik
>>
> --
>
> Souvik Dey
>
> Graduate Student, University of Illinois Chicago
> 312-774-8210 | s <souvik.dey29_at_gmail.com>dey8_at_uic.edu
>
> [image: https://www.linkedin.com/in/souvik-dey-4883a236/]
> <https://www.linkedin.com/in/souvik-dey-4883a236/> [image:
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>
>
>
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