The absolute potential energy of a spaceship on the surface of the earth is:
Correct answer: D. -GMe/Re
- A. GmMe/Re^2
- B. GMe/Re
- C. GmMe/2Re
- D. -GMe/Re
Explanation
The absolute potential energy (U) of an object, such as a spaceship, on the surface of the Earth can be calculated using the formula:U = -G * (m * M_E) / r_Ewhere:- G is the gravitational constant- m is the mass of the spaceship- M_E is the mass of the Earth- r_E is the radius of the EarthThis formula represents the gravitational potential energy of the spaceship due to its position on the Earth's surface. The negative sign indicates that the potential energy is lower on the surface than at infinity
This question appeared on the KMU MDCAT 2023 (retake) paper, which you can sit online with every answer explained.
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