Question

Rose and Joe start moving simultaneously from the same position at time t = 0. Their speeds are changing at a rate given by the functions vR = 1 + 2t and vJ = 2 + 3t, where t is in seconds and v is in meters per second. How much faster is Joe moving than Rose at t = 4 seconds.Select one of the options below as your answer: A. 10 meters per second B. 5 meters per second C. 2 meters per second D. 24 meters per second E. 22 meters per second

Answer 1

i would say it is C.