The centripetal acceleration is calculated by dividing the square of the velocity by the radius of the circular path. That is,
a = v²/r
Substituting the known values with consistent units,
a = (300 m/s)²/(2.25 x 10^3 m)
Simplifying,
a = 40 m/s²
Hence, the centripetal acceleration is equal to 40 m/s².