A stone is dropped from a height of 
above water. The graph shows the variation with time of the velocity of the stone
Which statement describes the approximate position of the stone four seconds after it is dropped?
It is at a distance of 
above the surface of the water.
It is at a distance of below the surface of the water.
It is at a distance of below the surface of the water.
It is at a distance of 
below the surface of the water.
