Solve the Problem $h = 176 - 16 t ^ { 2 }$

Solve the problem.
-A rock falls from a tower that is 176 feet high. As it is falling, its height is given by the formula $h = 176 - 16 t ^ { 2 }$ . How many seconds (in tenths) will it take for the rock to hit the ground $( h = 0 )$ ?

A) $12.6 \mathrm { sec }$
B) $13.3 \mathrm { sec }$
C) $3.3 \mathrm { sec }$
D) $1936 \mathrm { sec }$

Correct Answer:

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