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If a marble is dropped from the top of the Sears Tower, its height above ground level (neglecting air resistance) t seconds after it is dropped is...

If a marble is dropped from the top of the Sears Tower, its height above ground level (neglecting air resistance) t seconds after it is dropped is s(t)= 1454-16t2 feet. Show all work.

(a) How long will it take the marble to reach the ground?

(b) How fast will the marble be traveling when it hits the ground?

(c) What is the acceleration of the marble?

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