A winch lifts a crate vertically upward at a constant speed of while supplying of…

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

Problem

A winch lifts a crate vertically upward at a constant speed of

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

while supplying

2.5\,\text{kW}

of mechanical power. Neglect air resistance. What is the mass of the crate? (a)

2.6\times10^{2}\,\text{kg}

(b)

1.6\times10^{2}\,\text{kg}

(c)

3.2\times10^{2}\,\text{kg}

(d)

3.9\times10^{2}\,\text{kg}