I desperately need help with this question. It's not the first time I asked for help, but i'm running out of time.
"Find the work done by a 10 pound force acting in the direction (1, 2) in moving an object 3 feet from (0, 0) to (3, 0). "

Question

I desperately need help with this question. It's not the first time I asked for help, but i'm running out of time. 
"Find the work done by a 10 pound force acting in the direction (1, 2) in moving an object 3 feet from (0, 0) to (3, 0). "

mathmale · Answer

The 10-lb force is not oriented in the direction that the object is traveling, but it does have a component in that direction. What is that component? In other words, what is the force in the direction of the positive x-axis of the 10 # force acting in the direction <1,2>? Once you've calculated this component force, multiply the component by the distance the object is moved. Hint: search your textbook for "component of vector in the direction " or something like that. Do you want a vector or a scalar answer? Why?

cbreadbox · Answer

w=3?

mathmale · Answer

Note that the 10# force with directional vector <1,2> has an x-component of 1# and a y-comp of 2#.  Thus, multiply this force component (1#) by the distance the object moves along the x-axis (3 units).  The final answer is (1#)(3 feet) = 3 ft-lbs.  Must include the units of measurement in your answer.

cbreadbox · Answer

I did, I got all points. thanks for your help!