A body constrained to move along the z-axis of a coordinate system is subject to a constant force F given by F= -hati+2hatj+3hatk N where hati, hatj, hatk are unit vectors along the x-, y- and z-axis of the system respectively. What is the work done by this force in moving the body a distance of 4m along the z-axis?

A body constrained to move along the z-axis of a coordinate system is

1.	A body constrained to move along the z-axis of a coordinate system is subject to a constant force F given by F= -hati+2hatj+3hatk N where hati, hatj, hatk are unit vectors along the x-, y- and z-axis of the system respectively. What is the work done by this force in moving the body a distance of 4m along the z-axis?
Answer» SOLUTION :`= 12 J`