Question: An object is dropped from the bridge which is 400 feet high. The height of an object can be determine as a function of

An object is dropped from the bridge which is 400 feet high.

An object is dropped from the bridge which is 400 feet high. The height of an object can be determine as a function of time (since being dropped) according to a function ht = 400 - t2, where h (t) is the height measured in feet and t is the time measured in seconds. a) What is the class of the function? b) What is the height of the ball after 4 seconds? c) How long does it take for the ball to hit the water?

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