Question

800m from the point where the person is standing, a navy ship is having target practice.
The person finds that if a stone is dropped vertically at the same time as the spurt of the smoke from the ship's gun is seen, the stone hits the water at the same time as the sound from the gun is heard.
Sound travels at 320m/s at that region.
Calculate the velocity with which the stone hits the water. ​

Answer 1

Answer:

800m stone is hiting the water