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  • Please,please help me - Kinematics - NEET-2

Six vectors, \vec{a}\:through\:\vec{f} have the magnitudes and directions indicated in the figure. Which of the following statements are true?

  • Option 1)

    \vec{b}+\vec{c}=\vec{f}

  • Option 2)

    \vec{d}+\vec{c}=\vec{f}

  • Option 3)

    \vec{d}+\vec{e}=\vec{f}

  • Option 4)

    \vec{b}+\vec{e}=\vec{f}

 

Answers (1)

best_answer

As learnt in

Commutative law of vector addition -

Sum of vector remains the same in whatever order they may be added.

vec{P}+vec{Q}=vec{Q}+vec{P}

Commutative law

- wherein

Fig. Shows Commutative law of vector addition.

 \therefore \vec{d}+\vec{e} = \vec{f}


Option 1)

\vec{b}+\vec{c}=\vec{f}

This option is incorrect

Option 2)

\vec{d}+\vec{c}=\vec{f}

This option is incorrect

Option 3)

\vec{d}+\vec{e}=\vec{f}

This option is correct

Option 4)

\vec{b}+\vec{e}=\vec{f}

This option is incorrect

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prateek

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