From the graph, which of these curves has the most negative initial * 1 point velocity? A B Position C O Time D O Curve C O Curve D O Curve B Curve A You throw a ball upward with an initial speed of 6.0 m/s from an initial * 1 point height of 2.5 m. After you throw the ball, its acceleration is 9.81 meters per seconds square downward. Taking upward to be the positive direction, write the position-time equation for the balls motion. O xf = 2.5 + 6.0t - 4.9t square O xf = 6.0 + 6.0t - 4.9t square O xf = 6.0 + 2.5t - 4.9t square xf = 2.5 + 2.5t - 4.9t squareWhat is the position of the object at 2 seconds? * 'l e-z-int | | | | | i o 0.5 1 1.5 2 2.5 3 3.5 Time (5} O 1: =14 8 m 0 x =19 n1 0 x =12 n1 0 x = 'll n1 You throw a ball upward with an initial speed of 6.5 ml's from an initial * 'l sc-int height of 4 m. after you throw the ball; its acceleration is 9.81 meters per seconds square downward. Taking upward to be the positive direction. write the positiontime equation for the balls motion. O 10' = 2.5 + 4.0t 4.9t square 0 id = 4.5 + 6.5t4.9t O xf = 4 + 6.5t 4.9t square 0 Id = 6.5 + 4.0t 4.9t square From the graph, which of the initial positions is most positive?* 1 point A B Position C O Time D Curve B Curve D O Curve A Curve C You throw a ball upward with an initial speed of 6.0 m/s from an initial * 1 point height of 2.5 m. After you throw the ball, its acceleration is 9.81 meters per seconds square downward. Taking upward to be the positive direction, Calculate the final position of the ball after 1.5 seconds. xf = 0.475 m xf = 1.547 m xf = 0.241 m xf = 0.005 mWhich of the following is not a condition between acceleration and the * 1 point shape of the position-time graph. O If the acceleration is positive (a > 0), then the parabola of the position-time graph curves upward. O If the acceleration is negative (a