Question

a particle weight 120N on the surface of the earth surface will it's weight be 30N radius of earth 6400km

Answer 1

· A particle weighs 120N on the surface of the earth.At what height above the earth's surface will its be 30N?(Radius of earth=6400km) ... If the body is taken to a height h above the earths surface, ... what are the importance of universal law of gravitation??