Question

a tube well pumps out 2400 kg of water per minute if water is coming out with a speed of 3m/sec what is the power of pump?

Answer 1

since force(f)=mass*acceleration

using equation of motion v=u+a*t

where u=initial velocity

a =acceleration and

t=time

so since u=0 v=3 a=? and t=60

3=0+a*60 so =0.05

f=ma which is 0.05*2400=120

and power is =force*velocity so p=120*3=360

Answer 2

mass of the water =2400kg time =1 min=60 sec power =work done/time 1/2mv square/time 1/2×24000×3×3 / 60 180W hope its work