The mass of the Moon is Mm = 7.34 * 10^22 kg and its radius is Rm = 1.74 * 10^6 m.) b) A lunar landing module has a mass of 3000 kg; What is the force of gravity acting on the module when it is 3500 km from the surface of the moon? What was its weight on the Moon? c) What is the gravitation potential energy of the module at the 3500 km point? d) If the lander travels via the gravitational force from a static resting point 3500 km from the moon’s surface; what is the module’s potential and kinetic energy when it is 5,000 m from the lunar surface? e) What is the required exit velocity the module would need to achieve if it were to leave the lunar surface and escape the Moon’s gravitational field?
Gravitational force
In nature, every object is attracted by every other object. This phenomenon is called gravity. The force associated with gravity is called gravitational force. The gravitational force is the weakest force that exists in nature. The gravitational force is always attractive.
Acceleration Due to Gravity
In fundamental physics, gravity or gravitational force is the universal attractive force acting between all the matters that exist or exhibit. It is the weakest known force. Therefore no internal changes in an object occurs due to this force. On the other hand, it has control over the trajectories of bodies in the solar system and in the universe due to its vast scope and universal action. The free fall of objects on Earth and the motions of celestial bodies, according to Newton, are both determined by the same force. It was Newton who put forward that the moon is held by a strong attractive force exerted by the Earth which makes it revolve in a straight line. He was sure that this force is similar to the downward force which Earth exerts on all the objects on it.
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