Question:

Escape velocity of a body from earth is 11.2 km/s.If the radius of a planet be one-third the radius of earth and mass be one-sixth that of earth, the escape velocity from the plate is: 

(1) 11.2 km/s 

(2) 8.4 km/s

(3) 4.2 km/s 

(4) 7.9 km/s

                                        JEE-2024

Solution:                
Escape velocity of a body from earth is 11.2 km/s.If the radius of a planet be one-third the radius of earth and mass be one-sixth that of earth, the escape velocity from the plate is: (1) 11.2 km/s (2) 8.4 km/s (3) 4.2 km/s (4) 7.9 km/s JEE-2024

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