Question

An engine raises 120kg of water through a height of 40m in 30s what is the power of the engine?(g=10m/s2​

Answer 1

Answer:

4800J/s

Step-by-step explanation:

m = 120kg

H = 40m

t = 30sec

Input energy = 120 × g × H = mgn

Ei  = 120 × 40 × 30 = 144000J

Energy per sec, E1  = 144000  ÷ 30 = 4800J/s

Power input = 4800J/s  

Answer 2

Answer:

4800J/s

Step-by-step explanation:

good luck have a nice day