1. A rescue plane wants to drop supplies 260 m below. If the plane is travelling at a speed of 75.0 m/s, what is the magnitude of the velocity of the supply when it lands? m/s 2. The hole on a level, elevated golf green is a horizontal distance of 155 m from the tee and at an elevation of 13.0 m above the tee. A golfer hits a ball at an angle of 9.10 above the horizontal and makes a hole-in-one! What was the initial speed of the ball? m/s 3. The shells fired from an artillery piece have a muzzle speed of 230 m/s, and the target is at a horizontal distance of 1.90 km. Two possible angles can be used to hit the target. Find the smallest angle relative to the horizontal at which the gun should be aimed?(Hint: sin20 = 2sin0cos0)