Answer:
216000 W or 216 kW
Explanation:
Power: This can be defined as the rate at which energy is consumed or used, The S.I unit of power is Watt (W)
Generally,
Power = Energy/time
P = E/t........................ Equation 1.
But
E = 1/2mv²..................... Equation 2
Where m = mass, v = velocity.
Substitute equation 2 into equation 1
P = 1/2mv²/t...................... Equation 3
Let flow rate (Q) = m/t
Q = m/t................ Equation 4
Substitute equation 4 into equation 3
P = Qv²/2........................ Equation 5
Where Q = flow rate, v = velocity, P = power.
Given: Q = 120 kg/s, v = 60 m/s
Substitute into equation 5
P = 120(60)²/2
P = 60(60)²
P = 60×3600
P = 216000 W.
Thus the power generation potential of the water jet = 216000 W or 216 kW
