Solve the Problem $\mathrm { V } ( \mathrm { T } ) = 48 \mathrm {~T} ^ { 2 }$

Multiple Choice

Solve the problem. Give the answer to the nearest tenth.
-The hang-time function $\mathrm { V } ( \mathrm { T } ) = 48 \mathrm {~T} ^ { 2 }$ , relates vertical leap to hang time. A player has a vertical leap of 39 in. What is his hang time?

A) $0.8 \mathrm { sec }$
B) $43.3 \mathrm { sec }$
C) $1.1 \mathrm { sec }$
D) $0.9 \mathrm { sec }$