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context: you are part of a cave exploration team and after finding a deeper hole in...

context: you are part of a cave exploration team and after finding a deeper hole in the cave and you lower the leader in a cage attached to a rope and after some time you lose radio contact and want to know if she is back at the rope so you can pull her up. You decide that you can determine whether or not the team leader is in the cage by striking the rope with a stick, allowing a wave pulse to travel down and up the rope. You have a stopwatch in order to time the delay between sending the pulse and receiving the reflected pulse.

note the cage is at rest for tension

You know that a 100 foot section of rope has a weight of about 25 pounds, and that the cage was lowered by 1,300 feet before it stopped. The cage itself has a mass of 150 kg, and the team leader has a mass of 75 kg.​

If the team leader ISNT in the cage, how long do you expect it to take for the pulse to go down the rope and back up?


If the team leader IS in the cage, how long do you expect it to take for the pulse to go down the rope and back up?

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Answer #1

Letu dinole ef the rse ithe lincar mas dews 二25 .the Лере AL a 、ICstanoz, as.sheum MtvmWith leader The stek te wave bulse

dt dx dt The Aanse turu İs tulek twith leaden 312x9 wltholtt ader, ,て二 10,47 see.

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