Ƙididdigar wutar lantarki na murhun wuta

Yadda ake lissafin ikon da ake buƙata don shigowa dumama tanderu don zafi diamita 40 da tsawon mita 6? Yadda ake lissafin saurin?

Lissafi: Zafi kilogram na ƙarfe daga digiri 25 zuwa digiri 1250 cikin daƙiƙa 60. Da tsammanin ingancin hita shine 0.5, ikon da ake buƙata shine: 0.168 ＜ ＜1250-25＞ × 1 ÷ 0.24 ÷ 0.5 ÷ 60 = 23.8kW.