Question

A sound wave is sent at the bottom of a sea. If the echo is heard after 2 sec- calculate the depth of the sea. The speed of sound in water is 1500 m/s. ​

Answer 1

3000

Step-by-step explanation:

Basic kinematics (also probably one of the first formulas in your physics textbook):

Velocity=Distance÷Time

Time=2sec

Velocity=1500 m/s

Distance=??

Rearrange the variables to find the last unknown:

Distance=Velocity×Time

=1500×2

=3000 m