A force exerts an impulse I on a particle changing its velocity from initial velocity u m/s to final velocity −2u m/s. If the applied force and initial velocity are oppositely oriented along the same line, find the work done by force.

A force exerts an impulse I on a particle changing its velocity from i

1.	A force exerts an impulse I on a particle changing its velocity from initial velocity u m/s to final velocity −2u m/s. If the applied force and initial velocity are oppositely oriented along the same line, find the work done by force.
Answer» A force exerts an impulse $I$ on a particle changing its velocity from initial velocity $u m/s$ to final velocity $- 2 u m/s$ . If the applied force and initial velocity are oppositely oriented along the same line, find the work done by force.

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A force exerts an impulse I on a particle changing its velocity from initial velocity u m/s to final velocity −2u m/s. If the applied force and initial velocity are oppositely oriented along the same line, find the work done by force.

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