A loader applied $150 N$ of force to lift a stone. $1250 j o u l e s$ of work was done. How far was the rock lifted?

9.3 m

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10.3 m

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8.3 m

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5.3 m

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Solution

The correct option is C
8.3 m

Given,

Force = $150 N$

Work done = $1250 j o u l e s$

Work done = $F o r c e \times D i s p l a c e m e n t$

1250 = 150 $\times$ $D i s p l a c e m e n t$

$Displacement = \frac{1250}{150} = 8.33 m$

Thus, the rock was lifted through a height of 8.33 meters.

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