Work done when a force, ${\rm{\vec F}} = \left( {\hat i + 2\hat j + 3\hat k} \right)$ N acting on a particle takes it from the point ${{\rm{\vec r}}_1} = \left( {\hat i + \hat j + \hat k} \right)$ m to the point ${{\rm{\vec r}}_2} = \left( {\hat i + \hat j + 2\hat k} \right)$

NEET UG PHYSICS MCQ: WORK-ENERGY-POWER

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Work done when a force,

\mathrm{\vec F} = \left( {\hat i + 2\hat j + 3\hat k} \right)

N acting on a particle takes it from the point

{\mathrm{\vec r}_1} = \left( {\hat i + \hat j + \hat k} \right)

m to the point

{\mathrm{\vec r}_2} = \left( {\hat i + \hat j + 2\hat k} \right)

View answer and explanation

Correct option: B

- 1\,J

Option D is incorrect. The correct answer is 3 J. The work done is calculated by taking the dot product of the force vector and the displacement vector.

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