The work done in raising a mass of 15 gm from the ground to a table of 1m height is

The work done in raising a mass of 15 gm from the ground to a table of 1m height is

How much work is done when a body of mass $m$ is raised to a height $h$ above the ground?

A book of masses 100g is raised to the top of a table of a height 1 m find the magnitude of the work done by the force applied against the gravitational force equal to g =10m/s²