(a) An object is subjected to the force F =
3x3 z ı ^ + 5 z2k ^ N, where
x and z are in metres. The object can only move in the
xz-plane.
(i) The
object moves from the origin by moving first along the
x-axis to (a, 0) and then parallel to the
z-axis to the point with coordinates (a,b). How
much work does the force do?
[2 marks]
(ii) The
object moves from the origin...