is thrown ! b. 2 seconds after it is thrown? Synthesis Problems For the synthesis problems in Chapter 3, use the approximate value of g = 10 m/s2 for the acceleration due to gravity. Ignore air resistance. SP1. A ball is thrown straight upward with an initial velocity of 18 m/s. Use g =1.Zim/s2 for computations listed here. a. What is its velocity at the high point in its motion? b. How much time is required to reach the high point? c. How high above its starting point is the ball at its high point? SI d. How high above its starting point is the ball 3 seconds after it is released? e. Is the ball moving up or down 2 seconds after it is released? SP2. Two balls are released simultaneously from the top of a tall