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NEET UG PHYSICS MCQ: WORK-ENERGY-POWER

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A body moves from a position

{r_1} = \left( {2\hat i - 3\hat j - 4\hat k} \right)

m to a position,

{r_2} = \left( {3\hat i - 43\hat j - 5\hat k} \right)

m under the influence of a constant force

F = \left( {4\hat i - 4\hat j + 5\hat k} \right)

N. The work done by the force is

View answer and explanation

Correct option: A

57 J

Option A (57 J) is correct because the work done is the dot product of the force and the displacement vector.

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