Question

a body of mass 50 kg is lifted to a height of 16m in 25 second.calculate the power

Answer 1

Answer:

490 W

Explanation:

Work done (W) = mgh

= (50Kg)x(9.8 $\\\tt \dfrac{m}{s^{2} }$)x(16m)

=  7840 J

Power (P ) = $\\\tt \dfrac{work\ done}{time\ taken}$

$\\\tt = \dfrac{7840 J}{16 s} \\\\\tt = 490\ W$