일반물리학 1 — Motion in Two and Three Dimensions: Problem 27

27 A certain airplane has a speed of 290.0 km/h and is diving at an angle of \(\theta = 30.0^\circ\) below the horizontal when the pilot releases a radar decoy (Fig. 4-24). The horizontal distance between the release point and the point where the decoy strikes the ground is \(d = 700 \text{ m}\). (a) How long is the decoy in the air? (b) How high was the release point?