QUESTION 4 The equations for motion in a straight line with constant acceleration are given by the following equations, where vo = initial velocity, a = acceleration, v= velocity, t = time, xo = initial position: V = V + at 1 y = y + vt += at 2 v =v + 2a(x-x) -x) = ( 102 ) Vo + v (x-x) You throw a ball vertically upward from the roof of a tall building. The ball leaves your hand at a point even with the roof railing with an upward speed of 15m/s; the ball is then in free fall with the gravity (g) = 9.8m/s. a. Determine the position of the ball 2 seconds after leaving your hand; b. Determine the velocity of the ball 2 seconds after leaving your hand; c. Determine the velocity when the ball is 10 meter above the railing.