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Hello Fred,

How do I combine these two equations to solve for " a ".

L^2 - r^2 = a^2

r = L x Ac / G

Thanks,

AL

WowGoHere.com

You can substitute the latter into the former, ie

L^2 - (L x Ac / G)^2 = a^2, thereafter you can take the root of the LHS to obtain the value of a.

That said, to discover the value of a, you will need the values of L, A, c and G beforehand.

Hope this helps. Peace.

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