A solid bar of length $L = 0.5$ $m$ and with $W = 0.1$ $m$ weighs $2$ $kg$. It also has two constant-thrust rockets attached on either end. Each rocket is small enough to be considered a point mass of $0.25$ $kg$. If the bar is initially at rest and in two seconds after the rockets are fired it achieves a rotation rate of $1000$ $rpm$, determine the thrust of each rocket.

A. $12$ $N$
B. $9.5$ $N$
C. $7.8$ $N$
D. $3.4$ $N$
E. $1.1$ $N$