General Mission Possible

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XJcwolfyX
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Re: General Mission Possible

Post by XJcwolfyX »

sciencegeek999 wrote:Wow, my brother hasn't even started planning his thing.
:O
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Re: General Mission Possible

Post by mnstrviola »

sciencegeek999 wrote:Wow, my brother hasn't even started planning his thing.
Neither have I :P
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Re: General Mission Possible

Post by XJcwolfyX »

mnstrviola wrote:
sciencegeek999 wrote:Wow, my brother hasn't even started planning his thing.
Neither have I :P
:O
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Re: General Mission Possible

Post by hirasia »

To make a pulley with IMA>1, must you use a block and tackle pulley?

Just having unequal weights wouldn't make it an IMA greater than 1 right?

I"m questioning for my sister.
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Re: General Mission Possible

Post by chalker »

hirasia wrote:To make a pulley with IMA>1, must you use a block and tackle pulley?

Just having unequal weights wouldn't make it an IMA greater than 1 right?

I"m questioning for my sister.

Correct. Check out the wikipedia page that explains this: http://en.wikipedia.org/wiki/Pulley

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Re: General Mission Possible

Post by foreverphysics »

Would a rack and pinion gear system on top of a ramp be considered one or two tasks? Also, would it be allowed?
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Re: General Mission Possible

Post by bri2433 »

What would be considered a good score in this event?
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Re: General Mission Possible

Post by chalker7 »

foreverphysics wrote:Would a rack and pinion gear system on top of a ramp be considered one or two tasks? Also, would it be allowed?
What two tasks are you planning on using them for and what suggests you to think it will not be allowed?
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Re: General Mission Possible

Post by foreverphysics »

chalker7 wrote:
foreverphysics wrote:Would a rack and pinion gear system on top of a ramp be considered one or two tasks? Also, would it be allowed?
What two tasks are you planning on using them for and what suggests you to think it will not be allowed?
I'm considering using the system to pull weights up the ramp. Not allowed-->technically not pulling, or parallel task?
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Re: General Mission Possible

Post by chalker7 »

foreverphysics wrote: I'm considering using the system to pull weights up the ramp. Not allowed-->technically not pulling, or parallel task?
Ah, well don't consider this an official clarification, for that you have to go to soinc.org and submit a question. However, if I were judging (and I probably won't be for this event), I would say that method involves pushing the weight up a ramp, not pulling it. Look on earlier threads for the parallel tasks question (we've discussed it at length, possibly in previous years), but basically if the rack and pinion failed, the weight would slide down the ramp and the tasks would not complete, so they are not parallel tasks.
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