Help me please- T^T. just put like 1 for the first and what fields go with it

Atrain departs from its station at a constant acceleration of 5 m/s. what is the speed of the train at the end of 20s?

Imagine you work as a consultant, and your daily job involves listening to the constructive criticism of others. as part of your job, you must listen to opposing viewpoints to make important decisions. in this activity, you are a consulting dam engineer. you must make a decision about four different dams; should they be repaired, taken down, or left alone? you will listen to contrasting opinions about what should be done with the dams before you make the final decision. as the consulting dam engineer, what do you decide to do with this dam? explain your reasoning. by making your decision, did you support the opinions of the mayor and/or the dam safety official? why or why not? (site 1)

Work out sian speed for the first 30 minutes of her journey. give your answer in km/h.