Two flies land on a spinning record. one fly, a, lands at the edge of the record at distance, t. the second ty, b, lands on a spot that is at r. what is the relative speed of by b comparedvo ily a a fly b moves at the same speed as fly a. fly b moves at a speed that is ⅓ the speed of fly a. c. fly b moves at a speed that is ¼ the speed of fly a. d. fly b moves at a speed that is twice the speed of fly a. e. fly b moves at a speed that is four times the speed of fly a. ridr) a rider finds herself pressed with her bac