(a) a force f = (3xî + 4yĵ), where f is in newtons and x and y are in meters, acts on an object as the object moves in the x-direction from the origin to x = 5.18 m. find the work w = f · dr done by the force on the object (in j). j (b) what if? find the work w = f · dr done by the force on the object (in j) if it moves from the origin to (5.18 m, 5.18 m) along a straight-line path making an angle of 45.0° with the positive x-axis. j is the work done by this force dependent on the path taken between the initial and final points? dependent independent