Gravitation

Related Questions

• The escape velocity of an object from the earth depends upon the mass of the earth (M), its mean density $(\rho )$, its radius (R) and the gravitational constant (G). Thus the formula for escape velocity is

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• What should be the velocity of earth due to rotation about its own axis so that the weight at equator become 3/5 of initial value. Radius of earth on equator is 6400 km

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• 3 particles each of mass m are kept at vertices of an equilateral triangle of side L. The gravitational field at centre due to these particles is

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• In some region, the gravitational field is zero. The gravitational potential in this region

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• The gravitational potential energy of a body of mass ‘m’ at the earth’s surface $ - mg{R_e}$. Its gravitational potential energy at a height ${R_e}$ from the earth’s surface will be (Here ${R_e}$ is the radius of the earth)

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