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A mother used 150 watts of power to raise a 15 newton object in a time interval of 8.0 seconds. Through what vertical distance was the object raised ?

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Solution,

In this question we have given,

power of motor=150watts

time=8s,

force=15N

we know that,

power=[tex]\frac{work}{time}[/tex]

[tex]power=\frac{force\times distance}{time}[/tex]

therefore,

[tex]distance=\frac{power\times time}{force}[/tex]

[tex]distance=\frac{150watts\times8s}{15N} \\distance=80m[/tex]

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