Question

Water is lifted out of a well 20.0m deep by a motor rated at 1.60hp. Assuming efficiency 90{\rm \\%} , how many kilograms of water can be lifted in 1 min?

Answer 1

Required formula is
p=w/t

Answer 2

Here
p=effective power

Answer 3

W=work
t=time

Answer 4

Given
p=90%*1.6hp=(90/100)*1.6*746watt
W=mgh=m*9.8*20
t=60sec
m=?

Answer 5

Response plz!!!!!!!!

Answer 6

thats math.... nextime post it in the math section ;)

Answer 7

That is math of physics??!!!