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How much power is used by a 40 kg athlete climbing a 10 m high ladder in 10 s?
Wiki User
∙ 14y ago
Power = Work / Time
Work = Force x Distance
Therefore:
Work = 40 x 9.81 x 10
Work = 3924 Joules
Power = 3924 / 10
Power = 392.4 Watts.
Wiki User
∙ 14y ago
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Where does she need high friction when climbing?
So she can reach faster
Who invented the Jacob's Ladder aka Climbing Arc?
when was the Jacob ladder inventedNo one seems to know, even though I asked the (original) question almost a year ago. Here's what I have discovered while I researched my own question.1. The Jacob's Ladder, or Climbing Arc was popularized by the original 1931 Frankenstein movie, but (invention) probably goes back to the turn of the century. The original 1931 set was reused in the 1974 'Young Frankenstein' movie where it features 5 Jacob's ladders, and many more high voltage, spark-gap devices. This beautiful 1931 lab set was constructed by Ken Strickfaden (see his Wiki link).2. I could not find any US Patents relating to the Jacob's Ladder, or Climbing Arc, but if anyone ever had a patent on it, it would be Nikola Tesla (see Wiki). He has 221 world-wide, and 113 US Patents, and made more of an impact to modern electricity than Tom Edison ever did. (If Edison had won the (DC) Current War, we'd have a power station every 9-10 miles along every power distribution line).3. Tesla habitually was behind on the filing of patents, and lost half his life's work in an 1895 Laboratory fire. Even with that, he still beat Edison in the AC/DC Power (distribution) War, by harnessing and distributing the power of Niagara Falls. He also invented the Tesla Coil, radio, and fluorescent bulbs, to name a few of his hundreds of inventions. (The FBI is still holding plans for his alleged "death ray", and other plans which they confiscated upon Tesla's death).4. My inquiry to the Tesla Museum in Belgrave, Serbia, regarding whether or not Tesla invented the Jacob's Ladder has yet to be answered.5. I vote we credit Nikola Tesla with inventing the Jacob's Ladder. There's no way he could have avoided discovering it while he was performing his HV experiments !
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How much power is used by a 40kg athlete by climbing 10M high ladder in 10S?
power=work/time work=forcexdistance therefore work=40x9.81x10 work=3924joule power=3924/10 power=392.4watts
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