A body constrained to move in Y direction, is subjected to a force given by ${\rm{\vec F}} = \left( { - 2\hat i + 15\hat j + 6\hat k} \right)$ N done by this force in moving the body through a distance of 10m along Y axis?

NEET UG PHYSICS MCQ: WORK-ENERGY-POWER

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A body constrained to move in Y direction, is subjected to a force given by

\mathrm{\vec F} = \left( { - 2\hat i + 15\hat j + 6\hat k} \right)

N done by this force in moving the body through a distance of 10m along Y axis?

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Correct option: C

150 J

Option C is correct because only the y-component of the force contributes to the work done when the displacement is along the y-axis.

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{A}

2 {~m}

2\mathrm{\;m}{\mathrm{s}^{ - 1}}

x = \mathrm{m}{\mathrm{s}^{ - 1}}

\mathrm{m}{\mathrm{s}^{ - 1}}

\mathrm{\vec F} = - K\left( {y\hat i + x\hat j} \right)

\mathrm{\vec F}

9.8\;\mathrm{m}{\mathrm{s}^{ - 1}}