If an Object Is Propelled Upward from a Height of 48

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