Solve the Problem $26.6 \mathrm { lb }$ From Rolling Down a Ramp Inclined

Multiple Choice

Solve the problem.
-What is the minimum force required to prevent a ball weighing $26.6 \mathrm { lb }$ from rolling down a ramp inclined $12.4 ^ { \circ }$ with the horizontal?

A) $26 \mathrm { lb }$
B) $13 \mathrm { lb }$
C) $5.7 \mathrm { lb }$
D) $2.9 \mathrm { lb }$