1.

A man is standing still. The force by the man on the earth is ( vec{F1} ). The force by the earth on the man is ( vec{F2} ). Which one of the following is true?

A. ( vec{F1} = vec{F2} )
B. ( vec{F1} = - vec{F2} )
C. ( vec{F1} = 5( vec{F2}) )
D. (2( vec{F1}) = vec{F2} )
Answer» C. ( vec{F1} = 5( vec{F2}) )


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