(a) What i the speed of a point on the outer edge of the wheel?

(b)What is the centripetal acceleration of the point?

I do this question in this way:

(a) f= 1750rpm = 29.167rps => T= 1/f = 0.03428

v= (2"pie"r) / T

= 13.93

(sorry...I dont know how to key in "pie", can anyone teach me?)

(b) a = (v^2) / r

= 2553.2

Am I right?