Odpowiedź:
v = [tex]\sqrt{2G \frac{M}{R} }[/tex]
M1 = d * 4/3 * π * r^3
M2 = 2d * 4/3 * π * (2r)^3
M2 = 2d * 4/3 * π * 8r^3
M2 = 16 * 4/3 * π * r^3 = 16 M1
v2 = [tex]\sqrt{2G\frac{16M}{2R} } = \sqrt{2G\frac{8M}{R} } = 2\sqrt{2} \sqrt{2G\frac{M}{R} } = 2\sqrt{2} v1[/tex]
[tex]\sqrt{2} = 1.41[/tex] 2* 1.41 = 2.83
v2 = 2.82 v1
odp wzrośnie 2.82 raza
