MHT CET 2022 Physics question
The mass and radius of the earth and moon are , , and , respectively. The distance between their centres is 'd'. The minimum velocity with which a particle of mass 'm' should be projected from the midpoint between them so that it could reach infinity is
Answer: (A)
Solution
The midpoint is at a distance from each body, so the gravitational potential there is . To just reach infinity the particle needs total energy zero: ,
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