A gardener drags a hose pipe along level ground in two different ways

PHYSICS · Subjective · CBSE · Physics · Work and Energy · Work and Energy

Problem

A gardener drags a hose pipe along level ground in two different ways. Case A: He pulls with a constant force of

50\,\text{N}

through

3\,\text{m}

in the direction of motion. Case B: He pulls with a constant force of

30\,\text{N}

through

6\,\text{m}

in the direction of motion. (i) Calculate the work done in each case. (ii) State which case involves more work.