At what distance from the center of the earth along a line from the earth to the moon, is there no net force on a 10,000kg spacecraft?

crossover-point

#1

A) At what distance from the center of the earth along a line from the earth to the moon, is there no net force on a 10,000kg spacecraft? This is the crossover point at with the attraction to the moon becomes larger than the attraction to the earth.

B) The gravitational potential energy is the sum of the potential energies with respect to the earth and the moon. Calculate the potential energy from the earth to the mopn

Answer:

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