Please help solve part B.

Part A Modern wind turbines are larger than they appear, and despite their apparently lazy motion, the speed of the blades tips can be quite high-many times higher than the At the tip of a blade, what is the speed? wind speed. A turbine has blades 53 m long that spin at Express your answer with the appropriate units. 14 rpm . (Figure 1) v = 78 - Submit Previous Answers V Correct Here we learn how to convert revolutions per minute to radians second to find the value of frequency and, on this basis, we ha calculated the speed at the tip of a blade. Figure V Part B At the tip of a blade, what is the centripetal acceleration? Express your answer with the appropriate units. ? Value Units