So im supposed to find the distance from the moon where the force on a particle from the earth and sun is equal.(adsbygoogle = window.adsbygoogle || []).push({});

I get this expression (earth-moon distance is 400 000km):

yMm/(r^2) = yMm / (400000km-r)^2

But from that I get r=200 000km and the answer should be 40 000km...

whats wrong with the expression?

thanks

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# Homework Help: Lagrange point

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