Question

A stomp rocket takes 2.8 seconds to reach its maximum height (g = -9.8 m/s?).Part A:What was the total time in the air?Part B:What was the final landing velocity?

Answer 1

`\begin{gathered} Part\text{ A} \\ Total\text{ time = (2)(}2.8s\text{)} \\ Total\text{ time = 5}.6s\text{ } \\ \text{Part B} \\ v_f=gt \\ v_f=(9.81m/s^2)(2.8s) \\ v_f=27.47\text{ m/s} \\ \text{The }final\text{ landing velocity is 27.47 m/s} \end{gathered}`