Physics, 04.12.2020 22:10 ibahadurali786oz4gxs
You need to move three identical couches from the first to the second floor of an apartment building. The first
time, you and a friend make a mistake and carry a couch up to the third floor and then back down to the second
floor. The second couch is carried directly from the first to the second floor. On your third trip, you decide to
put a ramp over the staircase and you both push the couch up the ramp to the second floor. During which trip
did you perform the most work on the couch?
Answers: 1
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You need to move three identical couches from the first to the second floor of an apartment building...
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