$\"\"$

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Distance of the particle from the origin is $\"\"$ meters.

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Force acts on the particle is $\"\"$ N.

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Find the work done in moving the object along the straight line from $\"\"$ m to $\"\"$ m.

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Work done formula:

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Work done in moving the object from $\"\"$ to $\"\"$ is $\"\"$ .

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Where, $\"\"$ is a variable force acts on an object.

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Here $\"\"$ N, $\"\"$ and $\"\"$ .

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Work done is $\"\"$ .

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$\"\"$

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$\"\"$ feet-pounds

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$\"\"$

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Interpret the result by considering work done from $\"\"$ to $\"\"$ .

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$\"\"$

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Interpret the result by considering work done from $\"\"$ to $\"\"$ .

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$\"\"$

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Observe that work done in moving the particle from $\"\"$ to $\"\"$ is positive and

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the work done in moving the particle from $\"\"$ to $\"\"$ is negative.

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Hence the work done in moving a particle is cancelled out and becomes zero.

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$\"\"$

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Work done in moving the particle is $\"\"$ ft-lb.