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If the power ...

Question

If the power of a motor is $40 k w$ at what speed can it raise a load of $20, 000 N$ ?

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Solution

Power $= 40 k W$
Force $= 20, 000 N$

We know that, the power is defined as:

Power $=$ force $\times$ velocity

Velocity $= \frac{P o w e r}{F o r c e} = \frac{40 k W}{20, 000} = \frac{40, 000}{20, 000} = 2 m / s$

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