[tex]P = a \times h | \div a \\ h = \frac{P}{a} [/tex]
[tex]Pc = 2Pp + Pb | - Pb \\ 2Pp = Pc - Pb | \div 2 \\ Pp = \frac{Pc - Pb}{2} [/tex]
[tex]V = m {c}^{2} | \div {c}^{2} \\ m = \frac{V}{ {c}^{2} } [/tex]
[tex]E = mgh | \div mh \\ g = \frac{E}{mh} [/tex]