A helicopter flying horizontally at a velocity of 25 m/s drops a mailbag from a height of 15m to a letter carrier waiting on the ground below. a) How long will the bag take to fall to the ground? 2. A projectile is fired horizontally from a gun that is45m above the ground. The muzzle velocity is m/s. (a) How long does the projectile remain in the air? (b) At what horizontal distance . Find Deals at Our site · Wide Variety Of Coupons · Send A Message · Dive into DiscountsService catalog: Latest Coupon Code, Free Online Coupon, Newest Promo Codes.Horizontally-launched projectiles are objects projected in a horizontal direction from an elevated position. a The initial vertical velocity of a horizontally-launched projectile is 0 m/s. a Projectiles have a constant horizontal velocity. a Projectiles accelerate vertically at m/s/s, ↓. What was the launch speed of the projectile? Problem 3 We are to launch a projectile from ground level at an angle such that the projectile lands on a at plateau that is 18m high and begins horizontally 28m away. Our launch speed is set to be 31m/s. What range of angles will land us on the plateau? Answers. Show all work including a diagram of the problem, list of x- and y- variables that indicate initial and final conditions, and the equations you use to solve the problem. A horizontally launched projectile’s initial vertical velocity is zero. Solve the following problems with this information. 1.