Question

A ship is moving at a speed or 30 km/hr. to know the depth of the ocean beneath it, it sends a radio wave which travels at a speed 200 m/s. the ship receives the signal after it has moved 500 m. the depth of the ocean is

Answer 1

As the ship is travelling 30 km/hr we have to find how much does it travels in 1 minute

so 30km =30,000metres
so 30,000÷60 minutes =500metres
hence it travels 500 metres in 1 minute

now to find the depth we have to multiply 500metres by 1min.(60sec.)
so 500×60=12,000
hence the depth of the ocean is 12,000m. that is 12 km
so it and.is 12

Answer 2

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