PHYSICS—ENGINEERING If a projectile is shot vertically into the air (from the ground) with an initial velocity of 176 feet per second, its distance y (in feet) above the ground t seconds after it is shot is given by y = 176t − 16t2 (neglecting air resistance).
(A) Find the times when y is 0, and interpret the results physically.
(B) Find the times when the projectile is 16 feet off the ground. Compute answers to two decimal places.
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