4.26. Damn, Vorobiev

The seller is blocked and sales of the product are suspended

4.26. Identify the work that will make the forces of the gravitational field of the Earth, if the body is a mass of 1 kg will fall to the surface of the Earth: 1) with a height equal to the radius of the Earth; 2) of infinity. The radius of the Earth and the acceleration of gravity at its surface assumed to be known.