1. [6 pts] A ball is thrown upward from a height of 256 feet above the ground, with an initial velocity of 96 ft/sec. From physics, it is known that the velocity at time t is: 17(t): 96 32t a. Express the height h of the ball as a function of the time t (in seconds). b. How long will it take the ball to hit the ground? c. With what velocity does the rock hit the canyon floor? With what acceleration