If an Object Is Propelled Upward from a Height of 48

question 277

Multiple Choice

If an object is propelled upward from a height of 48 feet at an initial velocity of 64 feet per second, then its height after t seconds is given by the equation $h ( t ) = - 16 t ^ { 2 } + 64 t + 48$ , where height is in feet. After how many
Seconds will the object reach a height of 112 feet?

• A) 4 sec
• B) 2 sec
• C) 1 sec
• D) 8 sec

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