PLEASE HELP ME CAN YOU ANSWER WITH AN EXPLANATION AS WELL

Dr. Doofenschmirtz has built a rocket. He launches the rocket straight up into the atmosphere. If the rocket moves from O m/s to 40 m/s in 2 sec, what is the rocket's acceleration? ​

Afair survey question is one that does not encourage biased responses. which survey question is fair? a.) do you agree that only unethical people take credit for other people’s work? b.) have you ever taken credit for somebody else’s work? c.) have you ever engaged in unethical behavior, such as taking credit for somebody else’s work? d.) don’t you think it is unethical to take credit for somebody else’s work?