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power required by a machine in raising a load
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asked
Aug 12, 2017
in
Engg-mechanics
by
chandu
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215k
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The power required by a machine having an efficiency of 80% for raising a load of 24 N through a distance of 36 m in 1 minute is
(a) 12 W (b) 18 W (c) 50 W (d) 450 W
iasprelims
1998
engg-mechanics
workdone&power
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