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Power

A machine rai...

Question

A machine raises a load of 750 N through a height of 16 m in 5 s.Calculate:

(i) the energy spent by the machine,

(ii) the power of the machine if it is 100% efficient.

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Solution

(i) Energy spent by machine or work done = F S Work,
W = 750 × 16 = 12000J
(ii)
$P o w e r space equals fraction numerator w o r k over denominator t i m e end fraction equals 12000 over 5 equals 2400 W$

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