NASA's Cassini mission to Saturn released a probe on December 25, 2004, that landed on the Saturnian moon Titan on January 14, 2005. The probe, which was named Huygens, was released with a gentle relative speed of 31 cm/s. As Huygens moved away from the main spacecraft, it rotated at a rate of seven revolutions per minute.

(a) How many revolutions had Huygens completed when it was 150 yards from the mother ship?

(b) How far did Huygens move away from the mother ship during each revolution? Give your answer in feet.