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

PHYSICS · Single correct · CBSE · Physics · Work and Energy · Work and Energy

Problem

80\,\text{N}

. If the power developed is

200\,\text{W}

, calculate the speed of the mower. (a)

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

(b)

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

(c)

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

(d)

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