Gravitation

Related Questions

• The escape velocity on earth is 11.2 km/s. On another planet having twice radius and 8 times mass of the earth, the escape velocity will be

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• If mass of a body is M on the earth surface, then the mass of the same body on the moon surface is

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• Two planets of radii in the ratio 2 : 3 are made from the material of density in the ratio 3 : 2. Then the ratio of acceleration due to gravity ${g_1}/{g_2}$ at the surface of the two planets will be

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• The escape velocity for a body projected vertically upwards from the surface of earth is 11 km/s. If the body is projected at an angle of 45o with the vertical, the escape velocity will be

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• The radius of the earth is 6400 km and $g = 10m/{\sec ^2}$. In order that a body of 5 kg weighs zero at the equator, the angular speed of the earth is

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