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Post by Skillz on Nov 13, 2008 17:35:39 GMT -5
can't wait till fa
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Post by Skillz on Nov 13, 2008 17:35:40 GMT -5
we should sim everything tonight
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Post by Skillz on Nov 13, 2008 17:35:42 GMT -5
everyone agree?
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Derwin
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Post by Derwin on Nov 13, 2008 17:36:12 GMT -5
solve for time it takes to hit the ground
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Post by Skillz on Nov 13, 2008 17:36:17 GMT -5
bradley-Lebron-Domatas-Smith-Emeka!
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Post by Skillz on Nov 13, 2008 17:36:41 GMT -5
lalalala
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Ducky
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Post by Ducky on Nov 13, 2008 17:36:46 GMT -5
then do a kinematics problem with initial v equal to that and height to be 2r. brilliant. But this chapter wasn't on Kinematic shit... So that's y I'm not sure thats the right way to do it. We kind find velocity, by the formula u gave. |
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Derwin
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Post by Derwin on Nov 13, 2008 17:36:49 GMT -5
then do v * t = distance
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Post by Rocky on Nov 13, 2008 17:37:09 GMT -5
Didn't see the Nick Swisher trade. Wow, I'd be ECSTATIC if I was a Yankees fan.
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Post by Skillz on Nov 13, 2008 17:37:12 GMT -5
13
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Post by Skillz on Nov 13, 2008 17:37:05 GMT -5
14
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Post by Skillz on Nov 13, 2008 17:37:30 GMT -5
15
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Derwin
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Post by Derwin on Nov 13, 2008 17:37:25 GMT -5
what chapter are you doing?
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Post by Skillz on Nov 13, 2008 17:37:21 GMT -5
will help later!
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Ducky
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Post by Ducky on Nov 13, 2008 17:38:06 GMT -5
what chapter are you doing? Force and Motion +Motion in 2/3 dimensions. |
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Ducky
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Post by Ducky on Nov 13, 2008 17:39:12 GMT -5
sooo
2*pi*r/T
T = 10 seconds
sooo
2*pi*8/10 = about 5..
So the velocity is 5m/s
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Derwin
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Post by Derwin on Nov 13, 2008 17:39:40 GMT -5
yeah, that basically means that you just solve for your initial V in a kinematics problem by looking at the ferris wheel (a complex motion)
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Outlawz
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Post by Outlawz on Nov 13, 2008 17:40:21 GMT -5
I shouldnt have to post 15
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Derwin
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Post by Derwin on Nov 13, 2008 17:40:20 GMT -5
exactly. then do 20 = 1/2 (g) t^2 and solve for t.
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Ducky
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Post by Ducky on Nov 13, 2008 17:40:33 GMT -5
a = v^2/r
= 5^2/8
= 3.15
So now
Velocity = 5 m/s
Acc = 3.15 m/s
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Ducky
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Post by Ducky on Nov 13, 2008 17:41:05 GMT -5
exactly. then do 20 = 1/2 (g) t^2 and solve for t. But we want X, not t.  |
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Derwin
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Post by Derwin on Nov 13, 2008 17:41:39 GMT -5
then do the v you solved for (5ish) times the t (seems to be about 2ish) to get your displacement in the x direction.
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Post by Spencer on Nov 13, 2008 17:41:58 GMT -5
I shouldnt have to post 15 Dont and see what happens. |
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Ducky
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Post by Ducky on Nov 13, 2008 17:42:22 GMT -5
then do the v you solved for (5ish) times the t (seems to be about 2ish) to get your displacement in the x direction. oo genius! |
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Derwin
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Post by Derwin on Nov 13, 2008 17:43:06 GMT -5
oh, diameter is 8...my math is off, i was doing it for 10.
no, you dont get acceleration for the ferris wheel, because its moving at a constant velocity.
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