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Started By
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OT Engineers/Physicist
Posted on 3/3/14 at 1:26 am
Posted on 3/3/14 at 1:26 am
I'm assuming we have quite a few intelligent people on here. So I thought I'd ask a simple question.. Thanks in advance
In the absence of an external torque, what happens to the angular momentum of an object?
Can you explain why?
In the absence of an external torque, what happens to the angular momentum of an object?
Can you explain why?
4
Posted on 3/3/14 at 1:30 am to CrimsonFanSince94
See post below
Newton's first law/conservation of angular momentum
Newton's first law/conservation of angular momentum
This post was edited on 3/3/14 at 1:37 am
Posted on 3/3/14 at 1:31 am to CrimsonFanSince94
I'm not doing you're homework for you. 
Posted on 3/3/14 at 1:31 am to CrimsonFanSince94
I'm no engineer and last time I studied physics was high school.....but the biggest red flag that comes to me when you said no external torque is that the momentum is conserved.
The classical explaination of what that means is with figure skaters.
When arms are extended, they are spinning at a given rate.
But if they pull the arms in, thus shrinking the spinning radius, they speed up relative to the original speed.
If they extend arms out, they revert back to original speed again.
The classical explaination of what that means is with figure skaters.
When arms are extended, they are spinning at a given rate.
But if they pull the arms in, thus shrinking the spinning radius, they speed up relative to the original speed.
If they extend arms out, they revert back to original speed again.
Posted on 3/3/14 at 1:32 am to jimbeam
I don't need you to do my homework lol, I just want an explanation from something other than my textbook right now.
Posted on 3/3/14 at 1:33 am to CrimsonFanSince94
just messin
and I'm surprised we got actual responses so quick
and I'm surprised we got actual responses so quick
Posted on 3/3/14 at 1:35 am to Pintail
Would have gone with the law of conservation of angular momentum myself.
Posted on 3/3/14 at 1:35 am to CrimsonFanSince94
the angular momentum L of a particle with respect to some point of origin is. L=r x mv
Momentum and mass are constant
When you lower the radius velocity increases.
Momentum and mass are constant
When you lower the radius velocity increases.
Posted on 3/3/14 at 1:35 am to Pintail
dude
it's way too late for this shite
it's way too late for this shite
Posted on 3/3/14 at 1:37 am to Pintail
Thanks all..
I'm surprised we got responses this late too..
The OT does work
& it's never too late for this, it's actually too early.. it's gonna be a long night for me
Posted on 3/3/14 at 1:38 am to jimbeam
You telling me I can't sleep for shite
Posted on 3/3/14 at 1:38 am to Pintail
my schedules screwed up too
Posted on 3/3/14 at 1:43 am to jimbeam
This is the only time of the day my girlfriend can't bug me so it works for me 
Posted on 3/3/14 at 7:07 am to CrimsonFanSince94
quote:
OT Engineers
Here!
quote:
In the absence of an external torque, what happens to the angular momentum of an object?
Can you explain why?
Nope, I'm a Chem-E
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