If an object is projected from a height of 336 ft with an initial velocity of 64 ft per sec, its height after t seconds is given

Question

If an object is projected from a height of 336 ft with an initial velocity of 64 ft per sec, its height after t seconds is given by the following equation
h=-16t² +64t+336
Use this information to answer parts (a) and (b) below.
(a) After how many seconds is the height 400 feet? (Hint: Let h=400 and solve.)

Kunduz · Accepted Answer

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