Physics

Problem

A gardener pushes a lawn roller with a constant horizontal force of

80\,\text{N}

through a distance of

15\,\text{m}

30\,\text{s}

. Calculate the power delivered by the gardener. a)

20\,\text{W}

160\,\text{W}

40\,\text{W}

60\,\text{W}