Low IMA Pulley Task

[Unome]

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]

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).

Wouldn't that still have an IMA of 1?

[Unome]

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).

Wouldn't that still have an IMA of 1?

No, half the force comes from the free rope, the other half from the anchored rope. Example

[ScottMaurer19]

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).

Wouldn't that still have an IMA of 1?

No, half the force comes from the free rope, the other half from the anchored rope. Example

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 2

[Unome]

Wouldn't that still have an IMA of 1?

No, half the force comes from the free rope, the other half from the anchored rope. Example

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 2

butterfly...

What you would actually want is something like this:

pulley ima one half.png (7.48 KiB) Viewed 4203 times

[Tesel]

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.

[Unome]

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.

Agreed, this would be much easier. An illustration, for those not familiar with pulleys:

low IMA pulley.png (6 KiB) Viewed 4143 times

[Tesel]

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.

Agreed, this would be much easier. An illustration, for those not familiar with pulleys:

Yeah that should be much more simple to construct, that looks right.

[absolutezerok3]

How would you go about activating the pulley?

[scioly2012]

How would you go about activating the pulley?

I dropped a weight into a bucket attached to the moveable pulley, which made it go down.

[PM2017]

Where are people getting their weights? They seem ridiculously expensive.

[VictoryChicken]

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.

Agreed, this would be much easier. An illustration, for those not familiar with pulleys:

low IMA pulley.png

Wow thanks for the illustration! Could you explain how you apply the effort in the example of the pulley system with the IMA of 0.50? Would the effort be pulled up?

[Unome]

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.

Agreed, this would be much easier. An illustration, for those not familiar with pulleys:

low IMA pulley.png

Wow thanks for the illustration! Could you explain how you apply the effort in the example of the pulley system with the IMA of 0.50? Would the effort be pulled up?

No, it's pulled downward as usual (because it's better to let gravity do the work for you).

[davecutting]

Where are people getting their weights? They seem ridiculously expensive.

Try your HS physics department.

[PM2017]

Where are people getting their weights? They seem ridiculously expensive.

Try your HS physics department.

Thanks for the advice, but unfortunately, that solution isn't available to us.
One of the physics teachers at our school hates SciOly, so she won't help us. The other one doesn't have any to lend us, especially not for the whole year.