A Sonar of a ship sends sounds waves of speed 1000 m/s. These waves are reflected back by the ocean floor in 2 seconds. Find the depth (in m) of theocean floor.

A Sonar of a ship sends sounds waves of speed 1000 m/s. These waves ar

1.	A Sonar of a ship sends sounds waves of speed 1000 m/s. These waves are reflected back by the ocean floor in 2 seconds. Find the depth (in m) of theocean floor.
A.	2000
B.	500
C.	1000
D.	100
Answer» D. 100