Physics Review Question

Unit: Mechanics
Year: 95 Question#: 8
Question: 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/s2
(2 ) 1.6 m/s2
(3 ) 4.9 m/s2
(4 ) 9.8 m/s2

What is this question really asking?

Explanation by: Chad H

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Answer 1
0.0 m/s2


0.0m/s2 would be so small the astronaut and the Moon would not accelerate toward each other so the astronaut would "fall off" the Moon. return to top

Answer 2
1.6 m/s2


Fnet/m =a 96N/60kg =1.6m/s2 return to top

Answer 3
4.9 m/s2


Fnet/m =a 96N/60kg does not equal 4.9m/s2 return to top

Answer 4
9.8 m/s2

9.8m/s2 is the earth's acceleration due to gravity. The moon has only a fraction of the Earth's gravity. return to top

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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