Aconstant force a={2,8} moves an object along a straight line from the point (3,6) to the point (10,14). find the work done if the distance is measured in feet and the force is measured in pounds.

The work done is 78 ft-lbs.

Step-by-step explanation:

The work W done by a force F in moving along a vector D is

In our case the displacement vector is

So the work done is

We know that the unit of force is pounds and the distance is mesuared in feet, then the work done is 78 ft-lbs.

366

step-by-step explanation:

correct answer is infinitely many solutions

step-by-step explanation:

2(2x + 3) = -4 + 2(2x + 5)

solving the above equation:

4x + 6 = -4 +4x +10

combining like terms

4x -4x = -4+10-6

0=0

since both sides are 0=0, we end up into true statement it means it has infinite many solutions.

so correct answer is infinitely many solutions