Question

Joan wants to take a 30.0N object up to the 3rd floor of her office building,which is 10m above the ground floor.It is too big to fit through the doors,however,so she uses a crane to get it up the 3rd floor window.How much power will the crane need to exert in order to do this in 5.00s?

Answer 1

P=W/t
P=F×s/t
P=30×10/5= 60 W