Question

The mass of (an imaginary) planet is four times that of the earth and its radius is double the radius of the earth. The escape velocity of a body from the earth is 11.2 Km/s. Find the escape velocity of a body from the planet.​

Answer 1

Answer:

Correct option is

B

2.48

Formula for escape velocity =

R

2GM

Mass of moon =M

radius of moon =r

Escape velocity =

9

2

times of earth =

9

2

×11.2=2.48m/sec.

Explanation:

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Answer 2

Answer:

15 . 84 km

Explanation:

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