Let p be the radial force field F = xi + yj. Find the work done by this force along the following two curves, both which go from (0, 0) to (7, 49). (Compare your answers!) If C1 is the parabola: x = t, y = t2, 0 t 7, then F Â dr = If C2 is the straight line segment: x = 7t2, y = 49t2, 0 t 1, then F Â dr =