College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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Transcribed Image Text:A 70.0-kg astronaut named Matt McConoughey pushes to the left on his space capsule with a force
F in space. Assume there is no air or gravity around him. The spacecraft has a total mass of 10000
kg. While he is pushing on the capsule, the astronaut accelerates to the right with an acceleration of
0.36 m/s²
Which one of the following statements concerning this situation is true?
a) The space capsule does not move, but the astronaut moves to the right with a constant
speed.
b) The astronaut stops moving after he stops pushing on the space capsule.
c) The force exerted on the astronaut is larger than the force exerted on the space capsule.
d) The velocity of the astronaut increases while he is pushing on the space capsule.
e) The force exerted on the space capsule is larger than the force exerted on the astronaut.
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a) option is incorrect as space capsule is experiencing a force due to which it will accelerate.
b)option is also incorrect as while pushing astronaut is experiencing a force which will make him accelerate and will gain some velocity and will move with constant velocity after he stops pushing.
c)option is incorrect as from newtons third law we know he will experience the same force as the spacecraft only in opposite direction.
d)option is correct as while pushing, due to force on him, he will accelerate or velocity will keep on increasing.
e)option is incorrect as we know from newtons third law , forces will be equal and opposite on spacecraft and the person.
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