Question

If a pump can raise 1000 litre of water per minite to a height of 45 meters, then its horse power of the pump is _________

Answer 1

yᴏᴜʀ ᴀɴꜱᴡᴇʀ ɪꜱ ɪɴ ᴛʜᴇ ᴀᴛᴛᴀᴄʜᴇᴍᴇɴᴛ......

Answer 2

As the density of water is a union equal to its volume thus 1000 litres would be 1000 kgs.

Now the work done by the machine is

1000*10*45 it will be 450000 thus

Power is ratio of energy transformed / time

450000/60 = 7500 joules as we know 745 j/s is 1 hp thus 7500 will be close to 10 ho.