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A particle experiences a force \vec{F}=kr^{2}\hat{r} where \hat{r} is the unit vector along position vector \vec{r}. The dimensional formula of ‘K’ is:

Option: 1

\left [ MLT^{-2} \right ]


Option: 2

\left [ ML^{3}T^{-2} \right ]


Option: 3

\left [ M^{-1}L^{2}T^{3} \right ]

 


Option: 4

\left [ ML^{-1}T^{-2} \right ]


Answers (1)

best_answer

Answer (4)

\vec{F}=kr^{2}\hat{r}

k=\frac{MLT^{-2}}{L^{2}}

k=ML^{-1}T^{-2}

Posted by

manish painkra

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