Question

The ratio of the radii of the planets R₁ and R₂ is k. The ratio
of the acceleration due to gravity is r. The ratio of the escape
velocities from them will be
(a) k r (b) √kr
(c) √(k / r) (d) √(r / k)

Answer 1

Answer:

The ratio of the radii of the planets R₁ and R₂ is k. The ratio

of the acceleration due to gravity is r. The ratio of the escape velocities from them will be

b.

$\sqrt{kr }$