An airplane, diving at an angle of 50.0° with the vertical, releases a projectile at an altitude of 554. m. the projectile hits the ground 8.00 s after being released. (assume a coordinate system in which the airplane is moving in the positive horizontal direction, and in the negative vertical direction.) (a) what is the speed of the aircraft?

Asilver dollar is dropped from the top of a building that is 1324 feet tall. use the position function below for free-falling objects. s(t) = −16t2 + v0t + s0 (a) determine the position and velocity functions for the coin. s(t) = v(t) = (b) determine the average velocity on the interval [1, 2]. ft/s (c) find the instantaneous velocities when t = 1 second and t = 2 seconds. v(1) = ft/s v(2) = ft/s (d) find the time required for the coin to reach the ground level. (round your answer to three decimal places.) t = s (e) find the velocity of the coin at impact. (round your answer to three decimal places.) ft/s