An object travels 11 m north and then turns around and travels 25 m south. If the total time of travel is 52 s what is the average speed and velocity of the object.
I used the formula I was told
average speed = distance/time
36m/52 s = 0.692 s is the answer I calculated but my textbook says its 36/52 s = 9/13
average velocity = displacement/time
14m/52 s = 0.269 s is the answer I calculated but its still wrong
14m/52 s = 7/26 is the answer
Can someone please tell me what I'm doing wrong