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Projectile Motion Assessment Vx = v cos e vyi = v sin 0 x = Vxt y = Vyit - 4.9t2 y = ( 2 x 2 R = Vx Vyi 4.9 1. A ball is thrown horizontally from a building that is 50 m tall at 13 m/s. a) How long does it take the ball to hit the ground? b) How far from the base of the building does the ball hit the ground? c) Plot the trajectory. 1 misel d) What is the impact velocity? O x (m) Som 40 O 50 ar - 0 . 1 4x - 13 mlil y (m) -50 Ground Level + x y A. ) Given gravity = . 9. Bands ' 1 13 /4 . 9 Initallry : 13 mis 2 26 - 19 .6 height cha = som 3 39 - 44-1 BOrclocity - 13 mis 4 52 1 - 50 time of Fall = 2- 1325 trital heightins : som/ 1 134 -44 1 Time of Flight - 3. 1935 -78 1 Distance = 41. 5179 m * = 15 x 2 19 on ( ) Impact vrocily - So = - 191 - 31. 304 -41-47