Can somebody please answer this quickly?

the answer will be a) proteins i believe

acceleration= v2-v1/t so 8m/s-3m/s / 3s =to 8/3 or

2.67 m/s^2

hope i

-lavira: )

i think that is new experiments yield untrustworthy data and should be carefully considered, because you don't know what will happen with the experiments.