To calculate the depth of the well, we can use the equation:
distance = 1/2 * acceleration due to gravity * time^2
Where distance is the depth of the well, acceleration due to gravity is 9.8 m/s^2, and time is the time it takes for the penny to fall to the bottom of the well.
Plugging in the given value of time = 1.5 seconds and acceleration due to gravity = 9.8 m/s^2.
Distance = 1/2 * 9.8 * (1.5)^2 = 11.55 meters
So the depth of the well is approximately 11.55 meters.