Question

An ultrasound emitted from a submarine returns after striking an obstacle in 10 seconds, calculate distance of the obstacle from the submarine if the velocity of sound in water is 1500 m/s.

Answer 1

Answer:

distance =speed×time

d=1500×10

d=15000m

d=15km

Answer 2

Velocity of sound in water = 1500m/s. 3. Distance of the obstacle from the submarine = velocity × time = 1500 × 5 = 7500m

Hope it helps