Final answer:
The stone was going at a speed of approximately 12.288 m/s before it hit the bottom of the well.
Step-by-step explanation:
To find the speed at which the stone was going right before it hit the bottom of the well, we can use the equation for motion under gravity:
Distance = (1/2) * acceleration * time^2
The acceleration due to gravity is approximately 9.8 m/s^2. In this case, the time taken is 1.6 seconds. Plugging in these values, we get:
Distance = (1/2) * 9.8 * (1.6)^2 = 12.288 meters
Therefore, the stone was traveling at a speed of approximately 12.288 m/s just before it hit the bottom of the well.