I have no idea how to solve this question.
"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 have no idea how to solve this question.
"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). "

greatlife44 · Answer

$$F*dCos(\phi) = Work$$

greatlife44 · Answer

where phi is the angle between the applied force and direction the object is moving.

greatlife44 · Answer

I'm assuming that the applied force is being applied horizontally. if it were at an angle we would need to only consider the x component of the force since the object moves horizontally. well that's a different case I guess. 

|dw:1461725058230:dw| 

$$3~feet*(\frac{ 0.38m}{ft  }) = 1.14~meters $$

$$\phi = 0~degrees $$

our applied force is 10 pounds, that needs to be in kg, and also force is in Newtons 

$$N = kg~\frac{ m }{ s^{2} }$$

10 pounds = 4.5kg 

$$4.5kg*9.8\frac{ m }{ s^{2} }*(1.14m)*Cos(0^{o}) = +50.3J$$