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Your Weekend Forecast For Alabama, NY
Chance of Precipitation: Fri: 90% / Sat: 50% / Sun: 10%. For complete forecast details...
Pollen Trend for Alabama, NY
Steady. View complete PollenCast?
Current Weather Conditions In Alabama, NY
Partly Cloudy, and 12 ° F. For more details?
Your Local Doppler Radar
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Video: Your Regional Weather Forecast
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Your 10-Day Forecast for Alabama, NY
Today: AM Snow Showers & High 15°F / Low 11°F.--- Fri: PM Snow & High 24°F / Low 2°F.--- Sat: Snow Shower & High 1°F / Low -6°F.--- Sun: & Beyond.... For more details?
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Potential Energy function for this system
1. The problem statement, all variables and given/known data
Find the potential energy function for the three mass, earth, and pulley system as shown. The potential energy will be as a function of the vertical position downward as shown in the diagram. Also, find the equilibrium position...

Potential Energy function for this system
Arc length in polar coordinates
I know that an arc length in polar coordinates can be computed by integrating $$int ds$$ using the formula ##ds=sqrt{rho^2 + frac{dr}{dtheta}^2}dtheta##. But, seeing that ##s=rhotheta## and ##ds = rho dtheta##, why is it wrong to calculate arc lengths with this expression for ##ds##?
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