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It is stated in the previous problem tha...

It is stated in the previous problem that a pilse travels from the bottom to the top of a hanging rope of length L in the time interval `Delta=2sqrt(L/g)`. Use this result to answer the following question. (It is not neccesary to set up any new integrations.) (a) over what time interval does a pulse travel halfway up the rope? Give your answer as a fraction of the quantity `2sqrt(L/g)`. (b) A pulse starts travelling up the rope. how far it travelled after a time interval `sqrtL/g)`?

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