Question

A machine raises a load of $750N$ through a height of $16m$ in $5s$. Calculate the power at which the machine works.

• A. $2400W$
• B. $24kW$
• C. $12kW$
• D. None of the above

Answer 1

The correct option is A $2400W$

We know that $Work=F\times s$.
Here force is equal to 750 N and displacement is equal to 16 m.
Hence,
$W=750\times 16=12000Joule.$
Hence energy spent is $12000J$.
$Power=work/time$
$P=12000/5=2400W$.
Hence, we need a power of $2400Watt$.