Physics Review QuestionUnit:
MechanicsYear:
95 Question#:
8Question:
A 60 kilogram astronaut weighs 96 newtons on the surface of the moon. The acceleration
due to gravity on the moon is(1
) 0.0 m/s^{2}(2
) 1.6 m/s^{2}(3
) 4.9 m/s^{2}(4
) 9.8 m/s^{2}What is this question really asking?
Explanation by: Chad H [ Return to question menu
]Answer 1
0.0 m/s ^{2}Incorrect 0.0m/s ^{2} would be so small the astronaut and the Moon would not accelerate toward each other
so the astronaut would "fall off" the Moon.
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Answer 2
1.6 m/s ^{2}Correct F _{net}/m =a 96N/60kg =1.6m/s^{2}
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Answer 3
4.9 m/s ^{2}Incorrect F _{net}/m =a 96N/60kg does not equal 4.9m/s^{2}
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Answer 4
9.8 m/s ^{2}9.8m/s ^{2} is the earth's acceleration due to gravity. The moon has only a fraction of the
Earth's gravity.
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What's this question really asking?
Find the acceleration due to gravity on the moon with the information from the above problem. return to top |

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