why is gravity not negative? (-9.8 m/s^2)   and the free fall accerlation (-25.9 m/s)?

Principles of Physics: A Calculus-Based Text
5th Edition
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter4: The Laws Of Motion
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why is gravity not negative? (-9.8 m/s^2)

 

and the free fall accerlation (-25.9 m/s)?

If a man weighs 900 N on the Earth, what would he weigh on
Jupiter, where the free-fall acceleration is 25.9 m/s²?
Transcribed Image Text:If a man weighs 900 N on the Earth, what would he weigh on Jupiter, where the free-fall acceleration is 25.9 m/s²?
First: we find the mass of the man by using the following equation:
fg = mg
Solving for (m),
fg 900
= 91.8 kg
9.8
m =
Then: we can find the weight of the man on Jupiter using the value of mass
we found:
fg.J
= mgj = 91.8 × 25.9 = |2.38 × 10³ N
fg.J
|2.38 × 10³ N
mment here
SUBMIT
Transcribed Image Text:First: we find the mass of the man by using the following equation: fg = mg Solving for (m), fg 900 = 91.8 kg 9.8 m = Then: we can find the weight of the man on Jupiter using the value of mass we found: fg.J = mgj = 91.8 × 25.9 = |2.38 × 10³ N fg.J |2.38 × 10³ N mment here SUBMIT
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