2. Which of the following cannot be a unit of speed? _________ (a) km/h (b) s/m (c) m/s (d) mm/s

2. Which of the following cannot be a unit of speed? _________ (a) k

1.	2. Which of the following cannot be a unit of speed? _________ (a) km/h (b) s/m (c) m/s (d) mm/s
Answer» s/m and mm/s Explanation:both are WRONG if we see in our mathematical and PHYSICS logics and formulas this is the CORRECT ANSWER pls mark me brainliest and FOLLOW me