The mysterious visitor that appears in the enchantingstory The Little Prince was said to come from a planet that “wasscarcely any larger than a house!” Assume that the mass per unitvolume of the planet is about that of Earth and that the planet doesnot appreciably spin. Approximate (a) the free-fall acceleration onthe planet’s surface and (b) the escape speed from the planet.
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.
The mysterious visitor that appears in the enchanting
story The Little Prince was said to come from a planet that “was
scarcely any larger than a house!” Assume that the mass per unit
volume of the planet is about that of Earth and that the planet does
not appreciably spin. Approximate (a) the free-fall acceleration on
the planet’s surface and (b) the escape speed from the planet.
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