The reason an astronaut in an earth satellite feels weightless is that the astronaut is beyond the range of the earth's gravity. the astronaut is falling. the astronaut is at a point in space where the effects of the moon's gravity and the earth's gravity cancel. this is a psychological effect associated with rapid motion. the astronaut's acceleration is zero.

The reason an astronaut in an earth satellite feels weightless is that the astronaut is beyond the range of the earth's gravity. the astronaut is falling. the astronaut is at a point in space where the effects of the moon's gravity and the earth's gravity cancel. this is a psychological effect associated with rapid motion. the astronaut's acceleration is zero.

College Physics

10th Edition

ISBN:9781285737027

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter7: Rotational Motion And The Law Of Gravity

Section: Chapter Questions

Problem 10WUE: (a) Find the magnitude of the gravity force between a planet with mass 5.98 1024 kg and its moon,...

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(a) Find the magnitude of the gravity force between a planet with mass 5.98 1024 kg and its moon, with mass 7.36 1022 kg, if the average distance between them is 3.84 108 m. (b) What is the acceleration of the moon toward the planet? (c) What is the acceleration of the planet toward the moon? (See Section 7.5.)
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