Physics, asked by mithbawkar747, 1 year ago

A pump can lift 9000 kg coal per hour from a mine of depth 120 m. Assuming its efficiency to be 75 % its power will be (in watts)-

Answers

Answered by swatiqu87

2250 w. power output by 3600

Answered by champion360

output power=9000*120*10=10800000/3600=3000
$\frac{75x}{100} = 3000 \\ so \: x \: = 4000$
so the power of pump is 4000watt
HOPE IT WILL HELP YOU.

champion360: tell me my mistake

swatiqu87: power output by time

swatiqu87: not power input by time

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champion360: just keep your mouth shut

swatiqu87: beztti ho gyi to keep ur mouth shut

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swatiqu87: apne physics wale teacher se jaaker paani maang aur bol sir aaj doob ke marne ka man kar rha h

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