What Is the Second Derivative for Phi in Particle Kinematics?

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bm71
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Homework Statement


L=18ft , theta-dot=8rpm or .83776 rad/s, omega = 1 rad/s, fi-0=70.5 and fi-1=24

Homework Equations

- 3D motion[/B]

The Attempt at a Solution


I have come up with a ton of different answet inbetween 12-18 ft/s^2. Non have been correct[/B]
 

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SteamKing said:
Why don't you show us some of your calculations? There may be a simple mistake located in there somewhere.
I can upload them later but don't have my notes on me right now.
 
SteamKing said:
Why don't you show us some of your calculations? There may be a simple mistake located in there somewhere.
I am stuck on what the 2nd div is for phi. The first goes to zero but the second I am not sure. That is the one that is messing me up in the equation.
 
bm71 said:
I am stuck on what the 2nd div is for phi. The first goes to zero but the second I am not sure. That is the one that is messing me up in the equation.
We can't help you unless you show us what you've done.

I mean, I'm guessing that "2nd div" stands for second derivative.

If you truly want help, then provide us with your work. Those are the rules in the HW Forums.