Suppose it takes at least 5 people to push a very heavy box up a 400-cm ramp. If there are actually 6 people there to help push, which ramp(s) could they use to get
the box moved? (Assume no friction)
A 200-cm ramp
B. 400-cm ramp
C. 800-cm ramp
D. Either the 400-cm ramp or the 800-cm ramp would work.
Answers: 1
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Suppose it takes at least 5 people to push a very heavy box up a 400-cm ramp. If there are actually...
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