Question

5. 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.
Ans. (i) 12000 J (ii) 2400 W​

Answer 1

Answer:

both are answers

Explanation:

We know that Work=F×s.

Here force is equal to 750 N and displacement is equal to 16 m.

Hence,

W=750×16=12000Joule.

Hence  energy spent is 12000J.

Power=work/time

P=12000/5=2400W.

Hence, we need a power of 2400 Watt.

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Answer 2

Answer:

Answer is 2400W please mark as brilliant