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(4) Physics A ball is thrown off of the top of a 112 foot building. The height h of the ball (in feet) above the ground at any time t (in seconds) is given by the function h(t) = -16t2 + 96t + 112 (a) How many seconds from when it is tossed does it take for the ball to hit the ground? [0.4] (b) Find the average velocity for the time the ball is in the air. Include units. (c) What is the ball's velocity when it hits the ground? Include units. (d) What is the ball's acceleration when it hits the ground? Include units