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  • The position-time(x-t) graphs for two children A and B returning from their school O to their homes P and Q respectively are shown in th graph.Choose the correct entry below: <img alt=""

The position-time(x-t) graphs for two children A and B returning from their school O to their homes P and Q respectively are shown in th graph.Choose the correct entry below:

Option: 1

B lives closer to school than A


Option: 2

B starts from the school earlier than A


Option: 3

A walks faster than B


Option: 4

B overtakes A on the road


Answers (1)

As we learned

Position vector -

Location of a point, in space, is an  important physical quantity which is known as position vectors.

- wherein

Representation of position vector

\vec{r}= x\hat{i}+y\hat{j}+z\hat{k}

 

 

Since the slope of graph B is greater than that of graph A, the speed of B is greater than that of A, B walk faster than A. B overtakes A, at the point of intersection of the two lines. All other statements are incorrect.

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Kshitij

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