An astronaut in her space suit has a total mass of 87.0 kg, including suit and oxygen tank. Her tether line loses its attachment to her spacecraft while she’s on a spacewalk. Initially at rest with respect to her spacecraft, she throws her 12.0 kg oxygen tank away from her spacecraft with a speed of 8.00 m/s to propel herself back toward it. a.What is her subsequent velocity after she throws her oxygen tank? b.Explain in terms of Newton’s laws of motion why this strategy works?
An astronaut in her space suit has a total mass of 87.0 kg, including suit and oxygen tank. Her tether line loses its attachment to her spacecraft while she’s on a spacewalk. Initially at rest with respect to her spacecraft, she throws her 12.0 kg oxygen tank away from her spacecraft with a speed of 8.00 m/s to propel herself back toward it. a.What is her subsequent velocity after she throws her oxygen tank? b.Explain in terms of Newton’s laws of motion why this strategy works?
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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- An astronaut in her space suit has a total mass of 87.0 kg, including suit and oxygen tank. Her tether line loses its attachment to her spacecraft while she’s on a spacewalk. Initially at rest with respect to her spacecraft, she throws her 12.0 kg oxygen tank away from her spacecraft with a speed of 8.00 m/s to propel herself back toward it. a.What is her subsequent velocity after she throws her oxygen tank? b.Explain in terms of Newton’s laws of motion why this strategy works?
Expert Solution
Step 1
(a) Apply the conservation of momentum to determine the astronaut’s velocity.
Here, ma, mt, v, va and vt represent the mass of an astronaut, the mass of the oxygen tank, the combined velocity of the astronaut and the tank, the velocity of the astronaut and the velocity of the oxygen tank, respectively.
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