\frac{mv^2}{2}+mgh=c |*2
mv^2+2mgh=2c
m(v^2+2gh)=2c
m=\frac{2c}{v^2+2gh}
-----
mgh=c-\frac{mv^2}{2}
g=\frac{c-\frac{mv^2}{2}}{mh}
g=\frac{c}{mh}-\frac{mv^2}{2} \cdot \frac{1}{mh}
g=\frac{1}{h}(\frac{c}{m}-\frac{v^2}{2})
-----
\frac{mv^2}{2}+mgh=c |*2
mv^2+2mgh=2c
m(v^2+2gh)=2c
m=\frac{2c}{v^2+2gh}
cdn