An $1-$kg object is a distance $5$ m above the ground. Assume the system has been chosen so that it can have gravitational potential energy. Use the approximation that the acceleration due to gravity is $10\frac{m}{s^2}.$ Which answer best describes the potential energy of the system in this configuration?

It must be $50kg\frac{m}{s}.$

It must be $50$ J $.$

It must be $50$ N $.$

It could have many possible values, depending on the choice of location where potential energy is zero.