Question

A machine of 2000 watt fill a tank in 10 minutes of mass 1000 kg at height 10m what is the efficiency of machine

Answer 1

Answer

velocity=2000

mass=1000kg

time=10min

Explanation:

in for according to newtons 3 law action is always opposite to reaction. in this case velocity of watt is 2000 means it's action. it's reaction means mass is 1000kg so we divide both first.

by dividing answer is 2 by 1 watt by multiplying 2x10 Is 20 the efficiency of machine is 20watt

Answer 2

Answer:

2kw

Explanation:

output power = mgh/t

100 kg × 10 m/s2 ×10 m/5 s

2×10 3

2 kw

Efficiency =[(output power/input power)]×100

60 =[2kw/(input power)]×100

input power =3.33 kw

power of machine is 3.33 kw