See rule 4.b.viii for details.
A single moveable pulley would probably work, though it would need a heavy counterweight (greater than 1 kg, even without accounting for inefficiency). It could be anchored to the high IMA pulley system (one of them triggering the other).
Low IMA Pulley Task
-
ScottMaurer19
- Member
- Posts: 592
- Joined: Thu Jan 05, 2017 9:39 am
- Division: Grad
- State: OH
- Has thanked: 0
- Been thanked: 1 time
Re: Low IMA Pulley Task
Wouldn't that still have an IMA of 1?Unome wrote:See rule 4.b.viii for details.
A single moveable pulley would probably work, though it would need a heavy counterweight (greater than 1 kg, even without accounting for inefficiency). It could be anchored to the high IMA pulley system (one of them triggering the other).
Solon '19 Captain, CWRU '23
2017 (r/s/n): Hydro: 3/5/18 Robot Arm: na/1/1 Rocks: 1/1/1 2018 (r/s/n): Heli: 2/1/7 Herp: 1/4/4 Mission: 1/1/6 Rocks: 1/1/1 Eco: 6/3/9 2019 (r/s/n): Fossils: 1/1/1 GLM: 1/1/1 Herp: 1/1/5 Mission: 1/1/3 WS: 4/1/10 Top 3 Medals: 144 Golds: 80
-
Unome
- Moderator
- Posts: 4315
- Joined: Sun Jan 26, 2014 12:48 pm
- Division: Grad
- State: GA
- Has thanked: 216 times
- Been thanked: 75 times
Re: Low IMA Pulley Task
No, half the force comes from the free rope, the other half from the anchored rope. ExampleScottMaurer19 wrote:Wouldn't that still have an IMA of 1?Unome wrote:See rule 4.b.viii for details.
A single moveable pulley would probably work, though it would need a heavy counterweight (greater than 1 kg, even without accounting for inefficiency). It could be anchored to the high IMA pulley system (one of them triggering the other).
-
ScottMaurer19
- Member
- Posts: 592
- Joined: Thu Jan 05, 2017 9:39 am
- Division: Grad
- State: OH
- Has thanked: 0
- Been thanked: 1 time
Re: Low IMA Pulley Task
I know very little about physics but all of the diagrams that look like that online say that the same set up has a IMA of 2Unome wrote:No, half the force comes from the free rope, the other half from the anchored rope. ExampleScottMaurer19 wrote:Wouldn't that still have an IMA of 1?Unome wrote:See rule 4.b.viii for details.
A single moveable pulley would probably work, though it would need a heavy counterweight (greater than 1 kg, even without accounting for inefficiency). It could be anchored to the high IMA pulley system (one of them triggering the other).
Solon '19 Captain, CWRU '23
2017 (r/s/n): Hydro: 3/5/18 Robot Arm: na/1/1 Rocks: 1/1/1 2018 (r/s/n): Heli: 2/1/7 Herp: 1/4/4 Mission: 1/1/6 Rocks: 1/1/1 Eco: 6/3/9 2019 (r/s/n): Fossils: 1/1/1 GLM: 1/1/1 Herp: 1/1/5 Mission: 1/1/3 WS: 4/1/10 Top 3 Medals: 144 Golds: 80
-
Unome
- Moderator
- Posts: 4315
- Joined: Sun Jan 26, 2014 12:48 pm
- Division: Grad
- State: GA
- Has thanked: 216 times
- Been thanked: 75 times
Re: Low IMA Pulley Task
butterfly...ScottMaurer19 wrote:I know very little about physics but all of the diagrams that look like that online say that the same set up has a IMA of 2Unome wrote:No, half the force comes from the free rope, the other half from the anchored rope. ExampleScottMaurer19 wrote: Wouldn't that still have an IMA of 1?
What you would actually want is something like this:
You do not have the required permissions to view the files attached to this post.
-
Tesel
- Exalted Member
- Posts: 161
- Joined: Sat Jan 30, 2016 8:03 pm
- Division: C
- State: MI
- Has thanked: 0
- Been thanked: 1 time
Re: Low IMA Pulley Task
The easier thing would be a simple block and tackle type pulley (I think that's what it's called). One fixed pulley and one movable pulley give you an IMA of 0.5 so long as you pull down on the movable pulley.
University of Michigan Science Olympiad Div. C Event Lead
2018 MI Mission Possible State Champions
2018 MI Mission Possible State Champions
-
Unome
- Moderator
- Posts: 4315
- Joined: Sun Jan 26, 2014 12:48 pm
- Division: Grad
- State: GA
- Has thanked: 216 times
- Been thanked: 75 times
Re: Low IMA Pulley Task
Agreed, this would be much easier. An illustration, for those not familiar with pulleys:Tesel wrote:The easier thing would be a simple block and tackle type pulley (I think that's what it's called). One fixed pulley and one movable pulley give you an IMA of 0.5 so long as you pull down on the movable pulley.
You do not have the required permissions to view the files attached to this post.
-
Tesel
- Exalted Member
- Posts: 161
- Joined: Sat Jan 30, 2016 8:03 pm
- Division: C
- State: MI
- Has thanked: 0
- Been thanked: 1 time
Re: Low IMA Pulley Task
Yeah that should be much more simple to construct, that looks right.Unome wrote:Agreed, this would be much easier. An illustration, for those not familiar with pulleys:Tesel wrote:The easier thing would be a simple block and tackle type pulley (I think that's what it's called). One fixed pulley and one movable pulley give you an IMA of 0.5 so long as you pull down on the movable pulley.
University of Michigan Science Olympiad Div. C Event Lead
2018 MI Mission Possible State Champions
2018 MI Mission Possible State Champions
-
absolutezerok3
- Member
- Posts: 29
- Joined: Thu Mar 09, 2017 9:37 pm
- Division: C
- State: MI
- Has thanked: 0
- Been thanked: 0
Re: Low IMA Pulley Task
How would you go about activating the pulley?
1|states MTV
[i]Disease Detectives[/i][b]| Mousetrap Vehicle |[/b][u] Circuit Lab [/u][b]| Mission Possible |[/b]Boomilever.
-
scioly2012
- Member
- Posts: 52
- Joined: Tue May 02, 2017 7:34 am
- Division: C
- Has thanked: 0
- Been thanked: 0
Re: Low IMA Pulley Task
I dropped a weight into a bucket attached to the moveable pulley, which made it go down.absolutezerok3 wrote:How would you go about activating the pulley?