Burl and Paul have a total weight of 1300 N. The tensions in the supporting ropes of the scaffold they stand on add to 1700 N. The weight of the scaffold itself must be
A. 600 N.
B. 400 N.
C. 800 N.
D. 500 N.
Answer: B
Environmental & Atmospheric Sciences
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Environmental & Atmospheric Sciences
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Environmental & Atmospheric Sciences