How can you tell if a question is giving you the period or the frequency? Period has units of time and frequency has units of (1/time). O Period has units of (1/time) and frequency has units of time. Period has units of seconds and frequency has units of m/s. Question 4 What formula would you use to find the speed of the object if you know its period? Ou= 2xT O v - 2mr O v = 2TTT