Answered

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assuming that the brakes are lifted with constant speed what is the minimum power the motor must produce?

Assuming That The Brakes Are Lifted With Constant Speed What Is The Minimum Power The Motor Must Produce class=

Sagot :

Given

Weight of the bricks, W=916N

Height,, h=13.2 m

Time taken, t=28.2s

To find

The power the motor must produce

Explanation

The power is the ratio of work done per unit time

Thus

[tex]\begin{gathered} P=\frac{W\times h}{t} \\ \Rightarrow P=\frac{916\times13.2}{28.2} \\ \Rightarrow P=428.76W \end{gathered}[/tex]

Conclusion

The power produced is 428.76W

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