- #1
Adam J
- 5
- 0
Hello. This is my first post so I apologise if I've put it in the wrong category or done something wrong.
Today in my physics lesson I was given a question where we were supposed to find the depth of a well, and we were given the suvat equations. The question was as follows:
"A stone is dropped down a well. It is heard to hit the bottom after 2.9 seconds. How deep is the well?"
I'm not asking for help with the suvat equations or for the answer it wanted, but I noticed it said "it is heard to hit the bottom," and I was trying to work out how deep the well actually is, considering in reality the speed of the sound traveling back up the well will make a very small, negligible difference, but I've been stumped on how to work this out. This isn't homework/coursework help, I'm just wondering if you could work out the actual depth of the well with this information considering the sound has to get back up too.
Since the highest number of significant figures given here is 2, we'll say that the time it has taken is 2.900 seconds to see the difference, because I'm guessing if it was given to 2sf the depth (also given to 2sf) would be the same.
Thank you
Today in my physics lesson I was given a question where we were supposed to find the depth of a well, and we were given the suvat equations. The question was as follows:
"A stone is dropped down a well. It is heard to hit the bottom after 2.9 seconds. How deep is the well?"
I'm not asking for help with the suvat equations or for the answer it wanted, but I noticed it said "it is heard to hit the bottom," and I was trying to work out how deep the well actually is, considering in reality the speed of the sound traveling back up the well will make a very small, negligible difference, but I've been stumped on how to work this out. This isn't homework/coursework help, I'm just wondering if you could work out the actual depth of the well with this information considering the sound has to get back up too.
Since the highest number of significant figures given here is 2, we'll say that the time it has taken is 2.900 seconds to see the difference, because I'm guessing if it was given to 2sf the depth (also given to 2sf) would be the same.
Thank you