To find the acceleration of an object, we can use the equation:
acceleration = (final velocity - initial velocity) / time
Given that the initial velocity (u) is 0 m/s, the final velocity (v) is 60 m/s, and the time (t) is 3 seconds, we can substitute these values into the equation:
acceleration = (60 m/s - 0 m/s) / 3 s
Simplifying the equation:
acceleration = 60 m/s / 3 s
acceleration = 20 m/s²
Therefore, the acceleration of the object is 20 m/s².