A worker lifts a load by applying a steady vertical force of and raises it through a…

PHYSICS · Subjective · A Level · Physics · Mechanics and materials · Mechanics and materials

Problem

A worker lifts a load by applying a steady vertical force of

150\,\text{kgf}

and raises it through a height of

2.0\,\text{m}

. (i) How much work is done on the load, expressed in

\text{kgf}\,\cdot\,\text{m}

? (ii) Convert this work into joules. Take

g = 9.8\,\text{m}\,\text{s}^{-2}

. (iii) Express your answer to part (ii) in kilojoules.