Final answer:
For an object moving at a constant speed of 2 m/s in a circle with a radius of 0.2 m, the centripetal acceleration is calculated as 20 m/s^2.
Step-by-step explanation:
The centripetal acceleration can be calculated using the formula a_c = v^2 / r, where v is the velocity of the object in meters per second (m/s) and r is the radius of the circle in meters (m). For an object moving at a constant speed of 2 m/s in a circle with a radius of 0.2 m, the centripetal acceleration is given by a_c = (2 m/s)^2 / 0.2 m = 20 m/s^2. Therefore, the centripetal acceleration is 20 m/s^2.