Final answer:
In physics, 'mean three distinct clunks' refers to taking the average value of three separate, distinguishable noises or impacts.
Step-by-step explanation:
In physics, when we say 'mean three distinct clunks', it refers to the measurement of the average of three separate, clear and distinguishable noises or impacts. The word 'mean' indicates that we are taking the average value of these three clunks. 'Distinct' means that each clunk is different from one another, and 'clunks' represent the sounds or impacts.