posted by Anonymous .
A brick is thrown upward from the top of a building at an angle of 40° to the horizontal and with an initial speed of 12 m/s. If the brick is in flight for 2.5 s, how tall is the building?
Consider the vertical component of velocity. Vvertial=sin40 * 12
well ho is your unknown, hf=0, vi=12sin40, and you know time
solve for ho