Projectile Motion Practice #1 1. A rock was thrown at an angle of 25 relative to the ground and a speed of 20 m/s. Determine the following: a. The total time the rock was in the air. b. How far the rock was thrown. c. The maximum height reached by the rock. d. The final vertical velocity of the rock just before hitting the ground. 2. A scared kangaroo once barely cleared a fence by jumping with a speed of 3.42 m/s at an angle of 55.20 with respect to the ground. If the jump lasted 1.40 5, determine the following: a. The height of the fence. b. The kangaroo's horizontal displacement. 3. Afootball is kicked at a speed of 20 m/s and an angle of 45. Ifthe height from which the football was kicked was 1.0 m, Determine the following: a. The total time the ball was in the air. b. How far the ball was kicked. c. The maximum height reached by the ball. d. The final velocity of the ball just before hitting the ground