Mathematics, 29.07.2019 02:00, atifgujar

Aprojectile was launched straight up from the ground with an initial velocity of 48 ft/s. the height of the projectile t seconds after launch is modeled by the function f(t)=-16t^2+48t. how long was the projectile in the air before it hit the ground? a. 3 seconds b. 4 seconds c. 5 seconds d. 6 seconds

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Aprojectile was launched straight up from the ground with an initial velocity of 48 ft/s. the height...