Quiz "Projectile Motion\" . A diver running 3.8 m/s dives out horizontally from the edge of a vertical cliff and reaches the water 2.1 5 later. a. What is the height ofthe cliff? (2 marks, K) b. How far from its base does the diver hit the water? (2 marks, K) c. What is the velocity ofthe diver before he hits the water? (3/1 marks, TIC) . An airplane travelling at a constant velocity of 155 km/h is to drop supplies to flood victims isolated on a patch of land 1.9:?102 m below. a. How much time before the plane is directly overhead the victims should the supplies be dropped? {2 marks, A) b. At what horizontal distance from the victims should the supplies be dropped? (2 marks, A). c. What is the velocity of the supplies before they hit the ground? [311 marks, TIC) . An athlete throws a shot-put with an initial velocity of 15 m/s at an angle of 43' to the horizontal. The shot-put leaves the athlete hand at a height of 1.8 m above the ground. a. What is the time of flight of the shot-put? b. What is its range? c. What is the maximum height (above the ground) reached by the shot-put? [6 marks, A) d. What is the velocity ofthe shot-put before it hits the ground? {3/1 marks, TIC) . A ball is kicked from the ground and has a flight time of 2.4 s and a range of 19 m. a. What is the initial velocity with which the ball is kicked? (5 marks, T) b. What is the maximum height reached by the ball? (2 marks, A)