Easy
Meter/second is international unit of -
Explanation
Explanation
Speed is calculated as distance travelled divided by time taken, i.e., Distance ÷ Time. Since distance is measured in metres and time in seconds, the resulting unit metre/second (m/s) is the standard SI unit of Speed. So the correct answer is Speed, option (3).
PRO TIP
Re-check your working by substituting the answer back into the original question.