A worker pulls a crate along a floor

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

Problem

A worker pulls a crate along a floor. He does

800\,\text{J}

of work in the first

4\,\text{s}

and another

600\,\text{J}

in the next

2\,\text{s}

. Calculate the average power developed during the entire

6\,\text{s}

interval.