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Gravitational force is a conservative and medium independent force. Its nature is attractive. Gravitational field intensity and gravitational potential gives information about gravitational field in vector and scalar form respectively. Actually gravitational field intensity is equal to the negative of the potential gradient. Potential energy is defined for only conservative force. It is also equal the total energy in escaping condition. Gravitational potential is either negative or zero but can never be positive due to attractive nature of gravitational force, if potential at infinity is taken zero.
Gravitational potential V versus distance r graph is represented in figure. The magnitude of gravitational field intensity is equal to
- 8 N / kg
- 4 N / kg
- 6 N / kg
- 2 N / kg
The correct answer is: 8 N / kg
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