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August 28, 2014

Homework Help: Physics

Posted by Brenda on Tuesday, October 23, 2012 at 9:38pm.

Trying to find escape speed from a planet and I am given the radius and gravitational field - g = 18 m/s^2. I have the conservation of energy, final energy is zero, I have the formula for V = sqrt 2GM/r, u = mgy. I have too many unknowns...I can't solve anything. What am I missing?

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