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Unread 07-01-2004, 14:53
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Exclamation Re: **IMPORTANT FIRST EMAIL BLAST**/Game Tip and 2004 Competition Manual Information!!

Exploration of Mars is popular this year in Science news and FIRST Lego League, so . . .

The height an object at rest needs to be on Mars to achieve 10 ft/sec
velocity SOLELY due to Mars gravity is 4 feet. This is the width of the
plywood sheets in the BOM. So a platform 4 feet high, terraced on one side
and on Mars would satisfy both the velocity tip and the "Stairway to
Heaven" tip.

Just something to think about.


1) Lyrics from "Stairway to Heaven"

2) Vmax = 10 ft/sec, but the clue does not say Vmax is on Earth.

Acceleration on Mars is 3.73 meters/sec/sec, or 12.23 ft/sec/sec.

Velocity(f) = velocity(o) + [acceleration(g) x time]

Velocity(f) = final velocity = 10 ft/sec (from clue)
Velocity(o) = initial velocity = 0 ft/sec (body at rest)
Acceleration(g) = Mars gravity = 12.23 ft/sec/sec
Time = 0.82 seconds

To determine the height an object would need to be to achieve this
velocity, you would use the distance equation:

X(f) = X(o) + [V(o)t] + 1/2[att]

X(f) = final distance
X(o) = initial distance = 0 (starting point)
V(o) = initial velocity = 0 ft/sec
t = time = 0.82 seconds
a = Mars gravity = 12.23 ft/sec
tt = time squared = 0.6724

X(f) = 4 feet (approximately)
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Last edited by Coco the Monkey : 07-01-2004 at 14:59.
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Unread 07-01-2004, 17:24
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Re: **IMPORTANT FIRST EMAIL BLAST**/Game Tip and 2004 Competition Manual Information!!

Quote:
Originally Posted by Coco the Monkey
Exploration of Mars is popular this year in Science news and FIRST Lego League, so . . .


X(f) = 4 feet (approximately)
I was thinking along the same lines. Mars is the hot thing right now in robotics, and that 4 ft is a nice approximation to a sheet of plywood.

Another thing I was thinking was one of the "paths" having a sliding gate or portal mechanism that would require a Vmax of 10 ft/sec to clear.

I also like the Evil Kneviel jump idea!

Bruce C.
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Unread 07-01-2004, 20:06
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Re: **IMPORTANT FIRST EMAIL BLAST**/Game Tip and 2004 Competition Manual Information

Quote:
Originally Posted by Bruce C.
I was thinking along the same lines. Mars is the hot thing right now in robotics, and that 4 ft is a nice approximation to a sheet of plywood.

Another thing I was thinking was one of the "paths" having a sliding gate or portal mechanism that would require a Vmax of 10 ft/sec to clear.

I also like the Evil Kneviel jump idea!

Bruce C.
0.o Hrmm...never thought of that. I was thinking that Vmax somehow related to the speed controllers or robot speed.

/me thinks this game could get real interesting real quick!!!

and that whole earth mars wutever velocity thing just confused me more *ponders*
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Unread 07-01-2004, 20:17
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Re: **IMPORTANT FIRST EMAIL BLAST**/Game Tip and 2004 Competition Manual Information!!

Ooohhohh...
I like some of the thinking here, don't assume that the ft/sec is feet per second. Sec could also be "Secondary". ft... maybe feet, but my guess is that its something else, like "Full Time", or...OH! Your Full Auto Time divided by the secondary scoring method?!? Ah, who knows.
I wonder what that FT is. Hmmhmmh. Ideas, anyone?
and the 10...
How does the number 10 play into FIRST's games? Usually it is a large scoring method, like KOTH, or having a goal in a zone type thing. So, focus more on the 10, think of how that number might be used in the game, and then use the rest of the phrase to try and clarify it.
I doubt the Vmax phrase has do do with the stairs, which I'm quite sure is what the second hint is about. So, It's probably about a scoring method, because they had one for obstacles already.
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