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Echo problem ?

  • Thread starter Douna2nd
  • Start date
  • #1
20
0

Homework Statement




a submarines sends sound waves and receives it after 4 seconds then goes under water 700 m and sends waves and receives it after 3 seconds he wants the depth of water

Homework Equations



V=d/t

The Attempt at a Solution



V=d/t V=x/2
then V=X-700/1.5 so x/2 = x-700/1.5 and X = 2800 is this right ?
 

Answers and Replies

  • #2
6,054
390
I did not understand you derivation, particularly the V = x/2 part, but the result is correct.
 

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