1. The problem statement, all variables and given/known data The sweep-second hand of a clock is 3.1 cm long. What are the magnitude of (a) the average velocity and (b) the average acceleration of the hand’s tip over a 5.0-s interval? (c)what is the angel between the average velocity and acceleration vectors? 2. Relevant equations a= v2/r 3. The attempt at a solution Ok so I have been working on this problem for about an hour and its starting to annoy me I can't seem to find the velocity vector since I am not given a time frame besides the one for the acceleration. I know that I can find acceleration as soon as I find velocity but I don't have any formulas or any thought on how to go about solving for average velocity. I also know that the answer for part c is 90 degrees since they are always perpendicular so really its just part a that is giving me so much trouble.