A Coin Is Tossed Upward from a Balcony $176 \mathrm{ft}$ High with an Initial Velocity of 16 Feet Per Second

Multiple Choice

A coin is tossed upward from a balcony $176 \mathrm{ft}$ high with an initial velocity of 16 feet per second. The height of the coin, in feet, after $t$ seconds is given by the function $h(t) =-16 t^{2}+16 t+176$ . For what length of time will the coin be at a height of at least 80 feet?

A) $0 \mathrm{sec}$ to $3 \mathrm{sec}$
B) $3 \mathrm{sec}$ to $6 \mathrm{sec}$
C) $2 \mathrm{sec}$ to $3 \mathrm{sec}$
D) $0 \mathrm{sec}$ to $1 \mathrm{sec}$