(Solved): A toy rocket is launched from the roof of a building at a velocity of 15m/s. See image below. (Us ...

A toy rocket is launched from the roof of a building at a velocity of $15\mathrm{m}/\mathrm{s}$. See image below. (Use $g=$ $10.0\mathrm{m}/{\mathrm{s}}^2$ ) (Make sure your calculator is in degree mode.) A. If it is in the air for $3.5\mathrm{s}$ and lands $10.9\mathrm{m}$ from the base of the building, determine the launch angle Q. Launch angle $=$ B. Find the magnitude of the total velocity (i.e., the speed) when the rocket reaches the ground. Speed $=$ Reminder: include units in your answers in the answer boxes.