A merry go round revolves 2 times per minute, jack is 10 feet from the center while bob is 14 feet from the center

Jack's linear speed is 126ft/min

Bob's linear speed is 176ft/min

Step-by-step explanation:

First of all, find the circumference of both circles given the radius; Jack, 2pir (10) = 63ft. Bob 2pir (14) = 88ft. Now, realize that the merry go round revolves 2 times per min; 2rpm, so multiply each result by 2 and there you go.