© An engine can pump 30,000litres of water to a vertical height of 45m in 10min.
Calculate the work done by the machine and the power of the machine. Ig=10m/s,
Density of water =10²kg/m", 1000litre=lm']
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Answer:
Explanation:weight of 30000 litre water=3×10⁵N
Work done- 3×10⁵×45
=135×10⁵ J
Power =work/time
=135×10⁵/(10×60)
=22.5×10³Watt
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