A high-speed sander has a disk 400 cm in radius that

Question

A high-speed sander has a disk 4.00 cm in radius that rotates about its axis at aconstant rate of 1265 rev/min. Determine

(a) the angular speed of the disk in radians persecond,

rad/s

(b) the linear speed of a point 2.2 cmfrom the disk's center,

m/s

(c) the centripetal acceleration of a point on the rim, and

m/s2

(d) the total distance traveled by a point on the rim in1.96 s.

m