You throw a ball vertically upward so that it leaves the ground with velocity 6.05 m/s. (a) What is its velocity and direction when it reaches its maximum altitude? magnitude m/s (b) What is its acceleration and direction at this point? magnitude m/s^2 (c) What is the velocity and direction with which it returns to ground level? magnitude m/s (d) What is its acceleration and direction at this point? magnitude m/s^2