3] A ball is thrown from the top of a building with an initial velocity of 20.0 m/s straight upward,at an initial height of 50.0 m above the ground. The ball just misses the edge of the roof on itsway down, as shown in Figure 2.20. Determine (a) the time needed for the ball to reach itsmaximum height, (b) the maximum height, (c) the time needed for the ball to return to theheight from which it was thrown and the velocity of the ball at that instant, (d) the time neededfor the ball to reach the ground, and (e) the velocity and position of the ball att 55.00 s. Neglectair drag.(please see the figure 2.20 in the book) t = 2.04 s20.4 mImax =v = 0t = 0Yo =0Vo = 20.0 m/st = 4.08 sy =D0v = -20.0 m/st = 5.00 sy = -22.5 mv = -29.0 m/s50.0 mt = 5.83 sy = -50.0 mv = -37.1 m/s

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