Find the work done by the gravitaional force F(x, y,z)=−(GMm)r|r|3 exerted on a particle with mass m from the point (1,0,0) to the point (1,0,5) along a piecewise-smooth curve C. Here r=xi+yj+zk is the vector that connects the mass M (located at the origin) and mass m (moving on the curve C) and G is the Newton's constant. Use the fact that the gravitational field is a conservative field and also use G=1, mass M=6 and m=1. Note that these numbers are not realistic and they are chosen in such a way that your calculations are made easier.