Physics

Problem

A gardener pushes a lawn-mower with a constant horizontal force of

80\,\text{N}

. If the power developed is

200\,\text{W}

, calculate the speed of the mower. a)

1.6\,\text{m\,s}^{-1}

0.40\,\text{m\,s}^{-1}

2.5\,\text{m\,s}^{-1}

3.3\,\text{m\,s}^{-1}