Question

. A ship sends out ultrasound that returns from the sea-bed and is detected after 3.2sec. If the speed of ultrasound in sea water is 1240m/s, calculate the distance of the sea-bed from the ship?

Answer 1

Answer:

Distance from sea-bed to ship=vt

v=1240m/s and t=3.2 sec

let distance required=D

D=vt=1240×3.2=124×32=3968m

Answer 2

Explanation:

distance = speed × time

= 1240×3.2=3.968m