Two astronauts, of masses 60 kg and 80 kg, are initially right next to each other and at rest in outer space. They suddenly push each other apart. How far has the heavier astronaut moved when the lighter astronaut has moved 12 m? Hint: At constant velocity, d = vt. Write this expression twice, once for each astronaut, and make a ratio. The time is the same and will divide out, giving a ratio of velocities. Conserve momentum to determine the velocity ratio in terms of the mass ratio of the two astronauts. O 21 m O 12 m O 9.0 m O 16 m O 7.0 m
Two astronauts, of masses 60 kg and 80 kg, are initially right next to each other and at rest in outer space. They suddenly push each other apart. How far has the heavier astronaut moved when the lighter astronaut has moved 12 m? Hint: At constant velocity, d = vt. Write this expression twice, once for each astronaut, and make a ratio. The time is the same and will divide out, giving a ratio of velocities. Conserve momentum to determine the velocity ratio in terms of the mass ratio of the two astronauts. O 21 m O 12 m O 9.0 m O 16 m O 7.0 m
College Physics
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Chapter1: Units, Trigonometry. And Vectors
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Transcribed Image Text:Two astronauts, of masses 60 kg and 80 kg, are initially right next to each other and at rest in outer space. They suddenly push each other apart. How far has the heavier
astronaut moved when the lighter astronaut has moved 12 m?
Hint: At constant velocity, d = vt. Write this expression twice, once for each astronaut, and make a ratio. The time is the same and will divide out, giving a ratio of
velocities. Conserve momentum to determine the velocity ratio in terms of the mass ratio of the two astronauts.
O 21 m
O 12 m
O 9.0 m
O 16 m
O 7.0 m
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