Two forces at 45 pull an object distance of 14. What is work by both forces?

[evan b]

What is the work done by the two forces together in moving an object a distance of d = 14 m as shown in the diagram? The magnitude of each force is 7 N.

 

[LowlyPion]

What is the work done by the two forces together in moving an object a distance of d = 14 m as shown in the diagram? The magnitude of each force is 7 N.

Separate the forces into components. What you are interested in are the force components in the direction that the block is actually moved.

W = f * d.

 

[evan b]

ya, so i found force by sqrt of 7^2 + 7^2. then i multiplied it by 7 and go 69.30 J. What am i doing wrong?

 

[LowlyPion]

ya, so i found force by sqrt of 7^2 + 7^2. then i multiplied it by 7 and go 69.30 J. What am i doing wrong?

Isn't the distance it's moved 14?
(The sqrt of 98 looks ok for the force in the direction of motion.)