Meriam, Kraige & Bolton — Kinematics of Particles: Problem 2_23

2/23 A toy helicopter is flying in a straight line at a constant speed of 4.5 m/s. If a projectile is launched vertically with an initial speed of \(v_0 = 28 \text{ m/s}\), what horizontal distance \(d\) should the helicopter be from the launch site \(S\) if the projectile is to be traveling downward when it strikes the helicopter? Assume that the projectile travels only in the vertical direction.