Question

If the power of a motor be 100kw, at what speed can it raise a load of 50,000 N?

Answer 1

Power is = workdone / time

Here power is given as 100,000 Watts

And work done is force × displacement

And force is given as 50,000 N

We left with displacement ..

100,000 = 50,000 × displacement / time where we can take displacement by time as velocity so by dividing we get 2m/s

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