```
a = v / t
```
where:
* `a` is the acceleration in radians per second squared (rad/s²)
* `v` is the final angular velocity in radians per second (rad/s)
* `t` is the time it takes for the second hand to make one complete revolution in seconds (s)
In the case of a second hand, the final angular velocity is 2π radians per second, since it makes one complete revolution in 60 seconds. The time it takes for the second hand to make one complete revolution is 60 seconds.
Therefore, the acceleration of the second hand is:
```
a = 2π / 60 = 0.1047 rad/s²
```
So, the acceleration of the second hand is approximately 0.1047 radians per second squared.
