Question

An object is lifted from the surface of a spherical planet to an altitude equal to the radius of the planet. As a result

Answer 1

Answer: The correct answer is : It happens that the mass remains the same but the weight decreases.

Explanation: While the mass remains constant everywhere, the change in weight is due to the change occurred with gravity:

g '= g (1-2h / r)

As there is upward movement, the weight decreases because gravity decreases. Weight is inversely proportional to the square of the distance between the object and the center of the planet.