A person holding a ball is on top of a building. The person jumped at the rate of 1 ft/s while dropping the ball. After 12 seconds, the ball hit the ground. Determine the following: a. The height of the building: b. The velocity of the ball when it is about to hit the ground; Ignore the dimensions of the ball and the height of the person. Use g = -32 ft/s. Give exact answer i.e., do not round off answers.

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