Solve the Problem $192 \mathrm{ft} / \mathrm{sec}$ , and the Gorge Is

Multiple Choice

Solve the problem.
-A flare fired from the bottom of a gorge is visible only when the flare is above the rim. If it is fired with an initial velocity of $192 \mathrm{ft} / \mathrm{sec}$ , and the gorge is $560 \mathrm{ft}$ deep, during what interval can the flare be seen? $\left(h=-16 t^{2}+v_{0} t+h_{0}\right.$ .

A) $0<$ t $<5$
B) $5<\mathrm{t}<7$
C) $10<\mathrm{t}<12$
D) $15<\mathrm{t}<17$