# It is a Question!

• Jul 26th 2006, 11:20 AM
maritza
It is a Question!
Astronaut jennifer's lifeline to her spaceship comes loose and she finds herself stranded at a constant 100.0m from the spaceship. She throws her 2.00 kg wrench at 20.0 m/s in a direction away from the spaceship. If she and her spacesult have a combined mass of 200 kg how long does it take her to coast back to her spaceship?
• Jul 26th 2006, 12:02 PM
CaptainBlack
Quote:

Originally Posted by maritza
Astronaut jennifer's lifeline to her spaceship comes loose and she finds herself stranded at a constant 100.0m from the spaceship. She throws her 2.00 kg wrench at 20.0 m/s in a direction away from the spaceship. If she and her spacesult have a combined mass of 200 kg how long does it take her to coast back to her spaceship?

Conservation of momentum tells us that her velocity is 0.2 m/s (the ratio of
wrench mass to her mass times the wrench velocity) towards her spacecraft,
so she takes 100/0.2=500 s to reach the spacecraft.

RonL
The text contains a physics problem involving the conservation of momentum and a calculation to determine the time it takes for an astronaut to return to her spaceship after throwing a wrench.
single_question_with_answer
Given a text passage, determine:
    1. If it contains a mathematical question (including word problems or calculations)
    2. If an answer to that mathematical question is provided in the text

First, describe the content structure you found in 1-2 sentences.

Then provide your analysis in the following format:
TYPE: <one of the following values>
- NO_QUESTION
- SINGLE_QUESTION
- SINGLE_QUESTION_WITH_ANSWER
- MULTIPLE_QUESTIONS
- MULTIPLE_QUESTIONS_WITH_ANSWERS
system
# It is a Question!

• Jul 26th 2006, 11:20 AM
maritza
It is a Question!
Astronaut jennifer's lifeline to her spaceship comes loose and she finds herself stranded at a constant 100.0m from the spaceship. She throws her 2.00 kg wrench at 20.0 m/s in a direction away from the spaceship. If she and her spacesult have a combined mass of 200 kg how long does it take her to coast back to her spaceship?
• Jul 26th 2006, 12:02 PM
CaptainBlack
Quote:

Originally Posted by maritza
Astronaut jennifer's lifeline to her spaceship comes loose and she finds herself stranded at a constant 100.0m from the spaceship. She throws her 2.00 kg wrench at 20.0 m/s in a direction away from the spaceship. If she and her spacesult have a combined mass of 200 kg how long does it take her to coast back to her spaceship?

Conservation of momentum tells us that her velocity is 0.2 m/s (the ratio of
wrench mass to her mass times the wrench velocity) towards her spacecraft,
so she takes 100/0.2=500 s to reach the spacecraft.

RonL
user
The text contains a physics problem involving the conservation of momentum and a calculation to determine the time it takes for an astronaut to return to her spaceship after throwing a wrench.

TYPE: SINGLE_QUESTION_WITH_ANSWER