Extra credit problem 1. The force exerted by an electric charge at the origin on a charged particle at the point (x, y, z) with position vector r =< x,y,z > is Kr F(7) where K is a constant. 117 118? Assume K = 10. Find the work done as the particle moves along a straight line from (1,0,0) to (1,2,5). Round the answer to the nearest whole number.