Solve the Problem
-Find the Work Done by a Force $42 ^ { \circ }$

Multiple Choice

Solve the problem
-Find the work done by a force of 2 pounds acting in the direction of $42 ^ { \circ }$ to the horizontal in moving an object 7 feet from $( 0,0 )$ to $( 7,0 )$ .

A) $10.4 \mathrm { ft } - \mathrm { lb }$
B) $9.4 \mathrm { ft } - \mathrm { lb }$
C) $20.8 \mathrm { ft } - \mathrm { lb }$
D) $11.2 \mathrm { ft } - \mathrm { lb }$