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As part of their training before going into orbit,

University Physics | 13th Edition | ISBN: 9780321675460 | Authors: Hugh D. Young, Roger A. Freedman ISBN: 9780321675460 31

Solution for problem 22DQ Chapter 13

University Physics | 13th Edition

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University Physics | 13th Edition | ISBN: 9780321675460 | Authors: Hugh D. Young, Roger A. Freedman

University Physics | 13th Edition

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Problem 22DQ

As part of their training before going into orbit, astronauts ride in an airliner that is flown along the same parabolic trajectory as a freely falling projectile. Explain why this gives the same experience of apparent weightlessness as being in orbit.

Step-by-Step Solution:

Solution to 22DQ Step 1 Introduction As part of their training before going into orbit, astronauts ride in an airliner that is flown along the same parabolic trajectory as a freely falling projectile to experience weightlessness. Explanation 1 Weightlessness is achieved when all the contact forces on a body are removed. Such a situation arises when a body is momentarily under free fall. When an astronaut is riding in a airliner under free fall, the force which acts on the astronaut is gravity. Gravity is only felt when there is an opposing force acting on the body. Thus, the astronaut would feel apparent weightlessness. Explanation 2 When the astronaut is on a free fall, the velocity will be equal to the terminal velocity. Air resistance will oppose the free fall and all the forces acting on the astronaut will cancels out. Thus, the astronaut will feel apparent weightlessness.

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Chapter 13, Problem 22DQ is Solved
Textbook: University Physics
Edition: 13
Author: Hugh D. Young, Roger A. Freedman
ISBN: 9780321675460

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As part of their training before going into orbit,