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Standard XIII

Physics

Relative Motion in 1D

Two particles...

Question

Two particles $A$ and $B$ are located at coordinates $(20, 0) m$ and $(30, 0) m$ . Relative position of $A$ w.r.t. $B$ is

10 m

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- 10 m

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20 m

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- 20 m

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Solution

The correct option is B $- 10 m$
Position of particle A on x-axis, $x_{A} = 20 m$
Position of particle A on x-axis, $x_{B} = 30 m$
Relative distance of $A$ w.r.t. $B$ , $x_{A B} = x_{A} - x_{B} = 20 - 30 = - 10 m$

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Two particles A and B are located at coordinates (20,0)m and (30,0)m. Relative position of A w.r.t. B is

The correct option is B −10 mPosition of particle A on x-axis, xA=20 m Position of particle A on x-axis, xB=30 m Relative distance of A w.r.t. B, xAB=xA−xB=20−30=−10 m

Two particles $A$ and $B$ are located at coordinates $(20, 0) m$ and $(30, 0) m$ . Relative position of $A$ w.r.t. $B$ is

The correct option is B $- 10 m$
Position of particle A on x-axis, $x_{A} = 20 m$
Position of particle A on x-axis, $x_{B} = 30 m$
Relative distance of $A$ w.r.t. $B$ , $x_{A B} = x_{A} - x_{B} = 20 - 30 = - 10 m$