An engine raises 120kg of water through a height of 40m in 30s what is the power of the engine?(g=10m/s2
2 answers:
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:
4800J/s
Step-by-step explanation:
good luck have a nice day
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