Physics Review QuestionUnit:
mechanicsYear:
1989 Question#:
15Question:
A 50.-kilogram student stands on the surface of the Earth. What is the magnitude
of the gravitational force of the Earth on the student?(1
) 490 N(2
) 50. N(3
) 9.8 N(4
) 6.7 x 10^{-11} NWhat is this question really asking?
Explanation by: Esy C [ Return to question menu
]Answer 1
490 N CORRECT When using the formula w(eight )= m(ass)g(ravity), and using the given mass and 9.8 m/s ^{2}, this is the value you get for weight.
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Answer 2
50. N INCORRECT This answer doesn't fit when using the equation w=mg. Remember mass and weight are two different things. return to top
Answer 3
9.8 N INCORRECT This answer looks familiar, but don't be phooled by it; it doesn't fit when using w=mg. return to top
Answer 4
6.7 x 10 ^{-11} NINCORRECT This answer doesn't fit when using w= mg. return to top
What's this question really asking?
How much does the student weigh? return to top |

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