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OpenStudy (anonymous):
A man weighs 645 N on Earth. What is his mass? 145 kg 65.8 kg 6320 kg
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OpenStudy (anonymous):
@Abhisar
OpenStudy (anonymous):
is it 145?
OpenStudy (anonymous):
\[\color{green}{\vec{F}_g = \text{m}\vec{g} }\]\[\color{green}{-645~\text{N} = \text{m}(-9.8~\text{m/s}^2)}\] and solve for m
OpenStudy (anonymous):
oh so its 65.8 kg?
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