Consider three planets. all have the same mass as earth, but with different radii (from largest to smallest: planet 1, 2, 3). for which planet is the escape velocity from the surface the largest? a) planet 1 b) planet 2 c) planet 3 d) the escape velocity is the same for each.

option C

Explanation:

given,

mass of the three planet is same

radius of the planets are

R₁ > R₂ > R₃

expression of escape velocity

G is the gravitational constant

M is the mass of the planet

R is the radius of the planet

from the above expression we can clearly conclude that the escape velocity is inversely proportional to the radius of the Planet.

radius of planet increases escape velocity decreases.

Hence planet 3 has the smallest radius so the escape velocity of the third planet will be maximum.

The correct answer is option C

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