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The Escape velocity from the Earth for a body of mass 100 g is 11.2 1 km/s. What will be its value for a body of 20 g? Justify. |
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Answer» Given info : The escape VELOCITY from the earth for a body of mass 100g is 11.21 km/s. To find : what will be its value for a body of 20g and also justify your answer. SOLUTION : escape velocity of a planet/celestial object is the MINIMUM speed of a free body by which it escapes from the planet/celestial object and never comes back again in their gravitational field. it is given by, v = √(2gR) where R is radius of planet/celestial object , G is gravitational constant. here you see, escape velocity never depends upon mass of the free body. so escape velocity for a body of mass 20g is also 11.21 km/s [the same value ] also read similar questions : Calculate the escape velocity of a body from the surface of the earth. [Given : G = 6.67 x 10⁻¹¹ Nm²/kg², R = 6400 km, g... the mass of the jupiter is 318 times that of the earth and the radius of jupiter is also11.2 times that of the earth.If ... |
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