The average power required to lift a $100 kg$ mass through a height of $50 $ metres in approximately $ 50$ seconds would be ............. $J/s$
The average power required to lift a $100 kg$ mass through a height of $50 $ metres in approximately $ 50$ seconds would be ............. $J/s$
$50$
$5000 $
$100 $
$980 $
The average power required to lift a $100 kg$ mass through a height of $50 $ metres in approximately $ 50$ seconds would be ............. $J/s$
$P = \frac{{mgh}}{t}$=$\frac{{100 \times 9.8 \times 50}}{{50}} = 980J/s$